1,2,3,4,5,6,10,12,15,20,30,60
13
Three. The common factors are: 1, 2, 4.
Three. The prime numbers (factors) of 60 are: 2,3,5
5
1 and 3.
2,5,10,1
There are 2 prime numbers from 60 to 70:61 and 67
30 and 60, among many others.
For integers, 55 to 64
There are 30 whole numbers that are odd numbers less than 60 which are also positive. Otherwise, there are infinitely many of them.
60