You can just find the factors:
1x30
2x15
3x10
5x6
so that's 8 numbers
13
30
6 numbers can go into 20; they are 1, 2, 4, 5, 10 and 20.
that is not even close to a question 6 occures in first 30 numbers for just 1 time so probabability of 6 in 30 numbers= 1/30
20, 40, 50
2, 3, and 5 are the prime numbers that go into 30.
1 and 3. These are the only whole numbers to go into both 27 and 30.
30
1,4,5,6,8,2,3,
1 and 5.
only 5.
15 and 30
1 and 2.
There are 30 whole numbers that are odd numbers less than 60 which are also positive. Otherwise, there are infinitely many of them.
There are 18 composite numbers up to and including 30
13
All these go into both 30 and 50: 1, 2, 5, 10.