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Fast Decimal to Binary Conversion

In two minutes try to convert these numbers from decimal to binary. The answers change every time!
  • 01100100011001010111001101110100011100100110111101111001 011000010110110001101100 011010000111010101101101011000010110111001110011
  • Quiz idea: Jerry928
  • Quiz by Quizmaster - Jun 19, 2017
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Enter answers in the area marked "Enter answer here".

For this quiz, the answer must correspond to the yellow box. You can move the yellow box by clicking the cell you want to move to, or by using the arrow or tab keys.

Punctuation and capitalization don't matter on JetPunk.

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+4
level 80
Jun 19, 2017
I haven't a notion how to do this!!! 😂
+3
level 68
Jun 19, 2017
Example: 57 Step 1 - find the biggest power of 2 less than the number. In this case, 32. Type 1. Step 2 - subtract it from the number (57 - 32 = 25). Is the next smaller power of 2 less than or equal to that number? (is 16 < 25?) If so, type 1. If not, type 0. In this case, we type 1, and our answer so far is 11. Step 3 - repeat for successively smaller powers of 2 until you reach 1. 25 - 16 = 9. Next smaller power of 2 is 8. Is 8< 9? yes. Type another 1. 9 - 8 = 1. Next smaller power of 2 is 4. Is 4 less than 1? no. Type 0. Is 2 less than 1? No. Type 0. Is 1 less than/equal to 1? Yes. Type 1. Full answer: 111001
+1
level 73
Jun 20, 2017
Each digit is a multiple of 2. Starting with the right most digit, you have 2^0, 2^1, 2^2, 2^3, 2^4 and so on and so forth which gives you a numerical value of 1, 2, 4, 8, 16, etc. You then add them up to get the number you need. So for example, 10111 is actually equal to 2^4+2^2+2^1+2^0 (2^3 is not included because there is a zero in that spot). Then just add them up. 16+4+2+1 = 23. For me, it's way easier to work backwards and convert binary to numerical numbers since I don't regularly work with binary so this was particularly challenging for me.
+1
level 65
Oct 4, 2017
Should Step 1 say "less than or equal to"? Your method, as written, doesn't work for numbers like 8.
+3
level 58
Oct 4, 2017
Thanks! No idea how to do this at first, now just got 5 points
+1
level 63
Oct 4, 2017
Thanks indeed kaiadam, that helped me a lot.
+1
level 70
Jun 19, 2017
Are the 1's and 0's in the instructions some sort of coded message?
+1
level 61
Jun 19, 2017
Copy and paste it here to find out.
+1
level 70
Jun 20, 2017
A human wrote that ?!
+2
level ∞
Oct 4, 2017
I'm not sure where it came from. My computer started making a weird buzzing noise and then those numbers appeared on the screen.
+2
level 74
Oct 4, 2017
Three billion human lives ended on October 4, 2017. The survivors of the nuclear fire... called the war "Judgment Day." They lived only to face a new nightmare... the war against the machines.
+1
level 56
Jun 20, 2017
This is a Reverse Turing Test: can a man or woman be taken for a robot?
+1
level 57
Jun 21, 2017
100%, but I think the randomisation was in my favor.
+1
level 71
Jun 22, 2017
My robot ancestry came in handy here!
+3
level 42
Oct 4, 2017
destroyallhumans<3
+9
level 73
Oct 4, 2017
There are 10 types of people in the world - those who understand binary and those who don't. (Somebody had to say it.)
+1
level 71
Oct 4, 2017
Thank you.
+1
level 63
Oct 4, 2017
Nice! There are two types of people in this world, those who can extrapolate from incomplete data.
+2
level 66
Oct 4, 2017
I would suggest that 2 minutes is not long enough. Being 52 and the last binary maths conversion I studied was night on 40 years ago maybe an extra 60 or 90 seconds?
+1
level 52
Oct 4, 2017
I second this! :)
+1
level 38
Jan 29, 2018
0100100100100000011000010110011101110010011001010110010100100001001000000110111101101110011011000111100100100000011001110110111101110100001000000011000100110010001011110011001000110000001011100010111000101110
+1
level 52
Oct 4, 2017
i got easy ones so maybe 15 or 30 more seconds
+1
level 43
Oct 4, 2017
I ran out of time with 3 left. Also, what's wrong with humans?
+2
level 44
Oct 4, 2017
I read the directions instructing me to convert the numbers. No! No, I won't do it and you can't make me..
+1
level 50
Oct 4, 2017
Ooh, a good place to promote my own conversions quiz. If you like binary, give it a try... https://www.jetpunk.com/user-quizzes/144821/number-conversions
+1
level 66
Oct 5, 2017
I know how to do it, I'm just not fast enough. I remember in school they taught us by giving us little wooden blocks that were valued, and had representative sizes, of 1, 2, 4 etc. etc and that's how they taught us the binary system. I thought originally that all computer programs were written in binary code.
+1
level 65
Oct 6, 2017
Copy and paste the numbers from the introduction and you get 99% of the answers.
+1
level 56
Jan 28, 2018
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