The smallest number with 16 factors is Andrew's Mom.
16 has five factors.
16
the answer would seem to be ten.
Answer16 is the smallest natural number that has exactly five factors; which are: 1, 2, 4, 8, and 16. Only squares have an odd number of factors.
The smallest number that has 9 and 12 as factors is 36.
16 if the prime factors don't have to be distinct. 210 if they do.
The smallest number that has exactly eight factors is 24. The factors of 1,2,3,4,6,8,12, and 24
The smallest prime factors are 2,3,5,7 thus the smallest number would be the product of these will be 210
64 (1, 2, 4, 8, 16, 32, 64)
240 is the smallest number with at least 19 factors. 240 has twenty factors: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240 262144 is the smallest number with EXACTLY 19 factors
240 is the smallest number with twenty factors.
11