1 and 31.
All of them.
It is in its simplest form because you can not divide thirty one more than one(its factors are one and itself).
3 and 11
1,2,3,5,6,10,12,15,30 Thirty has 9 factors.
The common factors are: 1, 2, 5, 10.
1 , 33 , 3 , 11
No, thirty-seven is a prime number. It only has two factors: one and itself.
The factors of 39 are: 1, 3, 13, 39.
1 and 5
They are 1 and 31 because it's a prime number
1,2,3,5,6,30,15,10
1, 2, 3, 5, 6, 10, 15, 30