10 is.
30
10
the answer would seem to be ten.
30 2*15 3*10 5*6
2
If you mean 2, 3 and 7 as factors then the smallest number is 42
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
114
Smallest 2 digit number is 10. 10 + 99 = 109
36
72 is the second-smallest number with 12 factors. Its divisors are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and 72. The smallest number with 12 factors is 60. Its divisors are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60.
70 is the smallest number that has prime factors of 2,5 and 7