They are: 1 2 4 5 10 and 20
The factors pairs of 20 are 1x20, 2x10, and 4x5 so 20 has 6 factors and 5 proper factors.
6 of them.
Factors of 20 are: 1 2 4 5 10 and 20
2 and 5
1, 2, 4, 5, 10, 20 Answer: 6
No. They have different number of factors
5, 10, and 20 are factors of 20 that are not also factors of 12.
How they're listed. The factors of 20 are 1, 2, 4, 5, 10, 20 The factor pairs of 20 are (20,1)(10,2)(5,4)
The other factors could be 4 and 5 or 1 and 20.
Factor pairs are just the factors of a number listed in a different way. The factors of 20 are 1, 2, 4, 5, 10, 20 The factor pairs of 20 are (20,1)(10,2)(5,4)
40 has 8 factors, namely: 1, 2, 4, 5, 8, 10, 20, 40
The factors of 20 are 1,2,4,5,10,20 The factors of 24 are 1,2,3,4,6,8,12,24