Factors of 21: 1, 3, 7, and 21.
Factors of 35: 1, 5, 7, and 35.
You didn't ask for the factors that are common to 21 and 35.
If you had asked for those, the answer would have been: 1 and 7 .
1, 3, 7, 21
1, 5, 7, 35
The GCF of 21 and 35 is 7.The factors of 21 are 1, 3, 7, and 21The factors of 35 are 1, 5, 7, and 35The greatest (largest) factor common to both 21 and 35 is 7The GCF is 7.
The factors of 105 are: 1, 3, 5, 7, 15, 21, 35, 105.
The factors of 105 are: 1, 3, 5, 7, 15, 21, 35, and 1051, 3, 5, 7, 15, 21, 35, 105.
All Factors of 105: 1, 3, 5, 7, 15, 21, 35, 105.
1, 3, 5, 7, 15, 21, 35, 105
The factors of 21 are: 1, 3, 7, 21The factors of 35 are: 1, 5, 7, 35
Factors of 21 are 3 and 7 (21=3x7). Factors of 35 are 5 and 7 (35=5x7). Factors of 49 are 7 and 7 (49=7x7).
735
Factors of 21: 1, 3, 7, 21.Factors of 35: 1, 5, 7, 35.Factors of 56: 1, 2, 4, 7, 8, 14, 28, 56.GCF (21, 35, 56) = 7
3 is a factor of 21, so ignore it. 21 factors to [3 7] 35 factors to [5 7] common factor [7] LCM = 21 * 35 / 7 = 105 ■
The factors of 21 are:1, 3, 7, 21The factors of 35 are:1, 5, 7, 35The common factors are:1, 7
The common factors are: 1, 7
The common factors are: 1, 7
The factors of 21 are: 1, 3, 7, 21The factors of 35 are: 1, 5, 7, 35The common factors are: 1, 7
15: 1,3,5,15 28: 1,2,4,7,14,28 21: 1,3,7,21 35: 1,5,7,35
-14 and -21
1 and 7