Question

What is the least possible number with exactly five distinct factors?

Answer 1

@TuringTest

Answer 2

@tkhunny

Answer 3

@Xavier

Answer 4

a^m, with a=prime number and m=positive integer will have (m+1) factors
let assume a=2 (because 2 is the smallest of prime numbers), then m must be 4 (4+1=5)
so, it is 16

Answer 5

16 = 2^4 -----> it has (4+1) factors
16 = {1,2,4,8,16} ----> 5 factors