36
39 is not a prime number.
30 has factors of 2,3 and 5
If you mean 29, 39, 59 and 79 then it is 39 that is the only composite number.
It is 39 because it has more than two factors
There are infinitely many numbers between 39 and 100.
30
39 is not a prime number.
29 & 59
30 has factors of 2,3 and 5
21 23 27 29 31 37 39
2 x 3 x 5 = 30
2 x 3 x 5 = 30
39 is not a prime number. It can be divided by 3 and 13.
39 and 40
39
If you mean 29, 39, 59 and 79 then it is 39 that is the only composite number.
It is 39 because it has more than two factors