12
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X=13
Multiply the number x times.
The only prime number that is a factor of both 20 and 32 is 2. Note: The only prime factor of 32 is 2. 32 = 2 x 2 x 2 x 2 x 2.
64 is not a factor of 8.Factor of a number x is always less than or equal to x.
Every number has a factor pair of 1 and itself. Prime numbers have that as their only factor pair. Composite numbers have additional factor pairs. 7 = 1 x 7 9 = 1 x 9 16 = 1 x 16 and others 21 = 1 x 21 and others