The factors of 25 are:
1, 5, 25
The factors of 27 are:
1, 3, 9, 27
The factors of 28 are:
1, 2, 4, 7, 14, 28
Multiples:
25, 50, 75, 100 and so on.
27, 54, 81, 108 and so on.
28, 56, 84, 112 and so on.
25 and 28 are both multiples of 1. The prime factors of 25 are 5 and 5. The prime factors of 28 are 2, 2, and 7. The two numbers do not share any prime factors, so their greatest common divisor is 1.
28 has the most factors: 6 Factors for 25 are: 1, 5, 25 Factors for 26 are: 1, 2, 13, 26 Factors for 27 are: 1, 3, 9, 27 Factors for 28 are: 1, 2, 4, 7, 14, 28 Factors for 29 are: 1, 29
No, 2 and 28 are not multiples of 56, they are factors.
7,147, 14 and 28
28, 56, 84, and all other multiples of 28 that are factors of other numbers are also divisible by 28.
All multiples of 7 and 28 have.
31 + 24 + 28 + 33 + 28 + 27 + 25 = 196/7 = 28
27
Factors of 27: 1, 3, 9, 27 Factors of 28: 1, 2, 4, 7, 14, 28
28 is a multiple of 14, so it can be proven that any factor of 14 must be a factor of 28.
22: 1, 2, 11, 22 23: 1, 23 24: 1, 2, 3, 4, 6, 8, 12, 24 25: 1, 5, 25 26: 1, 2, 13, 26 27: 1, 3, 9, 27 28: 1, 2, 4, 7, 14, 28 29: 1, 29 30: 1, 2, 3, 5, 6, 10, 15, 30
20, 28, 32 36 & 40 !