Number Factoring Game

This is an old math exercise often called the "Taxman". Here's how it works.

Pick a number from the board in a black circle
You get the value of the number (shown in green)
Your opponent, the taxman, gets all the factors of that number that remain on the board (shown in red)
When no more numbers remain that have factors, the taxman gets all those too!

Think you can beat the taxman? Start by clicking a number!

Congratulations!
You beat the taxman by

You lost by

😞

You tied the taxman!

Your best score is 0:0

0:0

100 Recent Comments

Level 60

Feb 2, 2022

Let’s go, finally beat it by 51 (I know I’m dumb).

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Level 60

Feb 2, 2022

How am I the only one who’s used squares so far???

Level 64

Feb 15, 2022

Because you haven't given the order of selection, if you don't do it in the right order you won't be able to pick all those squares.

Level 60

May 3, 2022

I obviously know that. Don’t you agree it ruins the fun by just giving the order? This way you have something to strive for but you have to figure out the order.

Level 15

Apr 25, 2024

Congratulations!

You beat the taxman by 39

Your best score is 657:618

Score:

657:618

Your Picks:

47, 25, 50, 20, 30, 40, 49, 46, 44, 42, 24, 48, 45, 39, 38, 36, 34

Taxman's Take:

1, 5, 2, 10, 4, 3, 6, 15, 8, 7, 23, 11, 22, 14, 21, 12, 16, 9, 13, 19, 18, 17, 26, 27, 28, 29, 31, 32, 33, 35, 37, 41, 43

Level 29

Feb 13, 2022

I beat the taxman by 1! (638-637) Here's how you do it: 47, 49, 35, 28, 44, 42, 46, 30, 38, 39, 32, 50, 34, 36, 40, 48

Level 36

Jun 19, 2022

Me too!

Level 45

Feb 22, 2022

i lost by 391

Level 29

Feb 22, 2022

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And beat him by 211

Level 29

Feb 23, 2022

And is it possible to tie?

Level 68

Feb 23, 2022

Yes it is possible!

Level 70

May 1, 2022

It isn't possible because the sum of all the numbers is odd, so a tie would require getting a non-integer number of points.

Level 68

Mar 5, 2022

This is stressful.

Level 32

Apr 11, 2022

Y E S ! ! !

Level 35

Apr 14, 2022

Playing 7 rounds, I loss by 11, next round, won by 11

, next round, 277

Level 35

May 27, 2022

638-637 I won!

Level 31

May 27, 2022

I lost by 71 points :( was 601-672

Level 35

Jun 9, 2022

i won by 71!

Level 41

Jun 10, 2022

use this to win the taxman

23, 25, 15, 21, 14, 22, 20, 16, 18, 24, 26, 38, 34.

Level 35

Jun 15, 2022

hello 5 days later

Level 36

Jun 19, 2022

I win by 1 point😂😂😂😂

Level 34

Jul 11, 2022

Level 34

Jul 11, 2022

Aka

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Level 64

Jul 23, 2022

won 728:547

47 49 35 27 10 20 30 40 50 39 33 28 36 38 32 34 42 44 46 48

Level 70

Jul 25, 2022

Beat him by 17

47, 49, 27, 50, 33, 39, 34, 45, 48, 28, 40, 46, 36, 42, 38, 44

Level 85

Jul 30, 2022

Finally, I won by 99. I love this!

Level 36

Sep 1, 2022

Beat the taxman by 31 - 47,49,46,35,50,15,45,40,30,48,38,36,26,44,28,42,34

Level 8

Sep 3, 2022

I beat him by 35

Level 55

Sep 20, 2022

Actually just beat the taxman by 5, damn 😅😂

Level 66

Oct 6, 2022

Kinda got obsessed. Best score 798. Anyone get better? I think I finally found the optimal formula.

Level 68

Oct 6, 2022

The best ever by anybody is 808.

Level 31

Mar 20, 2023

i got 808 to 467

Level 59

May 2, 2023

Same

Level 38

Oct 9, 2022

47, 4, 49, 46, 44, 39, 38, 34, 35, 27, 40, 30, 50, 48, 28, 36, 42 to lose by 1

Level 37

Oct 9, 2022

Lost by 43. So close!

Level 37

Oct 9, 2022

Won by 187!!!! 731: 534!

Level 37

Oct 9, 2022

Won by 3!

Level 66

Oct 10, 2022

Finally, after days of obsession, I got 808. I don’t know what to do with the rest of my life.

Level 42

Jan 8, 2023

I managed to win by 95 685:590. Here's how I did it 47, 49, 25, 50, 40, 9, 36, 33, 44, 39, 45, 28, 32, 34, 38, 48, 46, 42

Level 42

Apr 30, 2023

Now 115 by taking 47,49,25,50,27,33,45,39,24,48,28,34,36,38,40,42,44,46

Level 35

Jan 17, 2023

Here is how to win by 1 point: 47, 49, 27, 15, 33, 39, 44, 46, 34, 12, 24, 32, 42, 36, 38, 30, 40, 50

Level 20

Feb 13, 2023

47, 49, 35, 21, 39, 33, 26, 46, 38, 34, 27, 20, 42, 36, 48, 50, 45, 44

Won by 85

Level 76

Feb 13, 2023

either i've misunderstood the instructions, or they don't include the idea that when you pick a prime number, the others are struck out? all it says is that if you pick one the taxman gets its factors, and at the end the taxman gets the numbers with no factors left - but there's no clause saying how all primes after the first one are out of the game, could you add this to the instructions?

Level 59

Feb 17, 2023

I barely won...

I beat the Taxman! Score 644:631

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https://www.jetpunk.com/minigames/number-factoring-game

Level 46

Feb 22, 2023

I beat the Taxman! Score 657:618

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https://www.jetpunk.com/minigames/number-factoring-game

Level 38

Mar 23, 2023

I lost by one. 47,44,49,38,6,34,28,39,10,50,30,40,46,42,18,36,32,48

Level 35

Mar 27, 2023

I beat taxman by 129 choose these numbers:

47, 49, 35, 15, 33, 12, 32, 42, 34, 44, 45, 46, 36, 26, 38, 48, 30, 40, 50

Level 18

Mar 29, 2023

Here is a fun challenge if you've mastered the strategy, try to lose by as many as possible. (My PB is 429, but I haven't done it that much)

Level 18

Apr 25, 2023

459 now!

Level 42

May 13, 2023

Lost by 547

21 22 24 25 18 20 30 26 28 32 34 38 46

Level 47

Apr 6, 2023

47, 49, 39, 27, 18, 10, 40, 50, 30, 33, 44, 36, 34, 28, 42, 48, 38, 46. Beat him by 43

Level 21

May 1, 2023

choose the lowest numbers you can and you lose by 391. Yay

Level 24

May 2, 2023

47, 10, 20, 40, 50, 38, 33, 46, 26, 34, 30, 28, 44, 32, 45, 42, 48, 36

only beat him by 23

Level 24

May 2, 2023

my record for losing: 20, 18, 16, 14, 30, 26, 24, 22, 38, 34, 46, 50, 42

lost by 515 points!

Level 24

May 2, 2023

also whats the highest anyone has ever won by?

Level 40

Aug 6, 2023

I think the best possible score is 808:467, but I may be wrong.

There's academic papers you can refer to on this as well, if you're interested... look up Robert K. Moniot and Taxman Game.

Level 16

May 4, 2023

I beat the taxman 667:608

Level 28

May 22, 2023

HOW???????

Level 42

May 14, 2023

I lost by 551 23, 25, 20, 24, 28, 32, 18, 30, 22, 26, 34, 38, 42

Level 43

Jun 2, 2023

and now by 569 23, 25, 16, 6, 18, 20, 24, 22, 14, 26, 38, 34, 45, 42

Level 48

Jun 4, 2023

I beat the Taxman! Score 639:636

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https://www.jetpunk.com/minigames/number-factoring-game

I barely beat him :0

Level 19

Jun 10, 2023

Lost by 227 just what i had a score of 500+ : 750+

I put my hand on the Bible I picked 50, 45, 40, and other big numbers!

Level 57

Jul 9, 2023

I beat him by 105 with 47, 49, 8, 32, 25, 27, 45, 12, 48, 33, 44, 34, 26, 36, 28, 38, 46, 42, 30, 40

Level 49

Jul 20, 2023

I beat him by 11

Level 35

Aug 22, 2023

Win by 79: 47, 49, 46, 35, 26, 39, 8, 32, 48, 28, 38, 27, 36, 34, 50, 30, 40, 22, 42

Level 55

Sep 11, 2023

Yay I won by 199 with 47, 49, 35, 15, 45, 39, 33, 10, 20, 30, 40, 50, 28, 38, 24, 34, 44, 32, 42, 36, 46

Level 20

Sep 30, 2023

Win by 105, with this sequence: 47, 49, 38, 26, 34, 46, 39, 42, 33, 44, 35, 32, 24, 45, 36, 30, 40, 50

Level 61

Oct 7, 2023

won by 149 yayy

I beat the Taxman! Score 712:563

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my numbers - 47, 49, 35, 34, 50, 46, 38, 28, 26, 44, 40, 33, 32, 27, 45, 12, 48, 36, 42

Level 45

Oct 9, 2023

I finally won by 17

Level 53

Oct 23, 2023

47, 21, 39, 33, 26, 12, 42, 50, 30, 16, 44, 45, 40, 38, 34, 36, 46, 48, also won by 17. Really good game. Stressful at the end when they add up all the extra numbers and you just worry it’s going to be too much.

Level 59

Oct 27, 2023

I won 638-637 with 47, 49, 25, 27, 46, 39, 30, 34, 33, 28, 44, 40, 38, 42, 32, 48, 36

Level 26

Nov 2, 2023

idr the order but i picked 25, 30, 33, 34, 36, 38, 39, 40, 42, 44, 45, 46, 47, 48, 49, and 50 and won 646:629

Level 33

Jan 18, 2024

511:764

Level 33

Jan 18, 2024

578:697

Level 64

Jan 20, 2024

Finally beat this game after years

47, 49, 35, 45, 33, 39, 46, 38, 34, 30, 50, 44, 28, 42, 32, 36, 40, 48

Level 1

Feb 4, 2024

Win by 153

47,49,26,39,33,35,28,18,38,34,44,46,16,36,48,45,40,42,50.

Level 66

Feb 11, 2024

I got 807:468

Level 49

Mar 26, 2024

47, 49, 39, 33, 35, 27, 26, 42, 36, 34, 20, 30, 40, 32, 38, 44, 46, 48, 50

Level 43

Mar 29, 2024

I lost against the Taxman :( Score 519:756

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https://www.jetpunk.com/minigames/number-factoring-game

47, 38, 6, 8, 14, 48, 10, 30, 50, 46, 42, 44, 36, 26, 34, 40

Level 33

Apr 13, 2024

808:467

This is the highest possible I can make

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Level 33

Apr 13, 2024

47, 49, 35, 21, 27, 45, 33, 39, 26, 34, 46, 38, 18, 30, 42, 28, 36, 32, 40, 44, 48, 50

Level 55

Apr 14, 2024

I finally beat the taxman by 15 points

Level 55

Apr 15, 2024

I beat him again by 23 points.

Level 55

Apr 25, 2024

Now I won by 83 points

Level 45

Apr 16, 2024

47, 49, 45, 33, 39, 36, 50, 46, 38, 44, 24, 48, 28, 40, 34, 42

Level 15

Apr 25, 2024

Congratulations!

You beat the taxman by 39

Your best score is 657:618

Score:

657:618

Your Picks:

47, 25, 50, 20, 30, 40, 49, 46, 44, 42, 24, 48, 45, 39, 38, 36, 34

Taxman's Take:

1, 5, 2, 10, 4, 3, 6, 15, 8, 7, 23, 11, 22, 14, 21, 12, 16, 9, 13, 19, 18, 17, 26, 27, 28, 29, 31, 32, 33, 35, 37, 41, 43

Level 55

Apr 26, 2024

Congratulations!

You beat the taxman by 47

Your best score is 661:614

47,49,46,39,27,18,38,36,33,25,50,45,44,42,34,48,40

Level 36

May 6, 2024

Score 753:522 (beat by 231! finally!!)

Your Picks:

47, 49, 35, 39, 33, 27, 45, 26, 16, 50, 40, 30, 48, 46, 28, 34, 38, 44, 42, 36

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Level 42

May 10, 2024

Win by 57

666:609

Your Picks:

47, 49, 21, 42, 35, 45, 50, 33, 44, 34, 46, 38, 32, 26, 36, 48, 40

Level 44

May 12, 2024

I won by 63: 47, 49, 39, 45, 34, 20, 30, 40, 50, 28, 38, 33, 42, 46, 36, 48, 44

Level 45

May 25, 2024

I beat the Taxman! Score 711:564

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You beat the taxman by 147

Your best score is 711:564

Level 55

Jun 2, 2024

Tried losing as high as possible, this is the best I could do so far:

Score:

363:912

Your Picks:

48, 25, 14, 18, 20, 30, 22, 26, 34, 38, 42, 46

Taxman's Take:

1, 2, 3, 4, 6, 8, 12, 16, 24, 5, 7, 9, 10, 15, 11, 13, 17, 19, 21, 23, 27, 28, 29, 31, 32, 33, 35, 36, 37, 39, 40, 41, 43, 44, 45, 47, 49, 50

Level 28

Jun 13, 2024

I beat the Taxman! Score 778:497

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https://www.jetpunk.com/minigames/number-factoring-game

Level 72

Jun 18, 2024

638 to 637

47, 49, 35, 38, 39, 46, 45, 42, 12, 36, 48, 40, 50, 34, 33, 44

Level 85

Jun 30, 2024

I just shot the taxman. Is that cheating?

Level 44

Jul 8, 2024

Why would that be cheating? Doesn't look like it's on the rules.

Level 43

Jul 12, 2024

I beat the Taxman! Score 667:608

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Finally!

Level 45

Jul 16, 2024

I beat the Taxman! Score 800:475

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I pick 47 49 35 21 39 33 27 45 26 46 38 34 18 42 30 50 28 44 36 24 48 40

Level 37

Jul 26, 2024

Use all the odd numbers that you can use before using the even numbers that you can use. You should most likely win. Always start with 47 then 49.

Level 37

Jul 26, 2024

47,49,25,50,21,27,33,45,39,20,44,40,30,48,42,34,36,38,46 to beat the taxman by 153! 714:561

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