The smallest positive integer...

Given the statement, name the smallest number which fits with the clue.
Answer must correspond to the yellow box
All answers are positive integers
Quiz by kaderschaufel
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Last updated: July 2, 2019
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First submittedJuly 1, 2019
Times taken10
Average score57.9%
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The smallest positive integer that ...
Number
exists
1
is prime
2
is perfect
6
is sublime
12
is not a Fibonacci number
4
is odd and not prime (except 1)
9
is not a power of a prime number
6
is the product of two distinct primes
6
is the product of three distinct primes
30
the sum of its factors is bigger than itself
12
has every number from 2 to 7 as a factor
420
The smallest number of moves to solve any 15-puzzle
80
is both a square number and a triangular number (except 1)
36
is both a square number and the sum of two positive squares
25
can be written as the sum of two positive squares in two distinct ways
50
The smallest number of turns that is needed to solve any Rubik's cube
20
is an emirp, i.e. a prime number which results in a different prime when the digits are reversed
13
The smallest number of sides of a polygon that cannot be constructed with compass and straightedge
7
The smallest number of colours that is needed to colour the regions of any flat map, such that no two adjacent regions have the same colour
4
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