10 factors
Two of the factors of 80 are prime numbers: 2 and 5.
We won't be able to find factors of 80 that are not factors of 80. The factors of 80 that aren't factors of 42 are 4, 5, 8, 10, 16, 20, 40 and 80.
Four of them.
10 of them.
Factors of 80 = 1, 2, 4, 5, 8, 10, 16, 20, 40, 80.Prime factors = 2, 5.
The common factors of 55 and 80 are 1 and 5
There are two which are 2 and 5 because 2*2*2*2*5 = 80
The factors for 80 are: 10, 8, 40, 2, 20, 4, 1, 80, 16 and 5.
The common factors of 36 and 80 are: 1, 2, and 4
The common factors of 68 and 80 are 1, 2 and 4.
The factors of 4 are: 1, 2, 4 The factors of 80 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80
factors of 80: 1, 2, 4, 5, 8, 10, 16, 20, 40, and 80.