The factors of 21 are: 1, 3, 7, 21
The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, 56
7
The common factors are 1 and 7.
3
21 = 3*7 56 = 23*7 LCM = 23 * 3 * 7 = 168
The GCF is 3.
3,7,5
The GCF is 7.
Common factors of 21 and 27 are: 1 and 3.
This cannot be answered because the common multiples of any two or more numbers are infinite.
1,2,4,7,8,14,28,and 56 are the factors of 56 1,2,3,4,6,7,12,14,21,28,42,and 84 are the factors of 84. wait did you mean 56 and 84 or the number 5684?
Factors of 21 are 1,3,7,21 Factors of 56 are 1,2,4,7,8,14,28,56.
The prime factors of 56 are: 2, 7