10
25
It is 50.
The two-digit factors of 100 and 1000 are all composite.
Subtract 25 from 50.
50 - 25 = 25
10 is the lowest two digit number.
The lowest two-digit prime number is 11.11.
12 is the only two digit number which is a factor of 12.
14 is a factor of 532.
2000.The smallest four-digit number there can be is 1000. So, add 1000 and 1000 to get 2000, then least sum you can get when adding two four-digit numbers.
Yes.
12