1, 3, 7, 9, 21, 63
1, 5, 17, 85
1, 3, 5, 7, 15, 21, 35, 105
The factors of 63 are: 1, 3, 7, 9, 21, 63 The factors of 105 are: 1, 3, 5, 7, 15, 21, 35, 105
The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40 The factors of 85 are: 1, 5, 17, 85 The factors of 105 are: 1, 3, 5, 7, 15, 21, 35, 105
1 and 5
1 is there greatest common factor.
1, 3, 7, and 21
The GCF is 21.
The factors of 105 are 3,5, & 7. The factors of 63 are 3,3, & 7. One lot of '3' and one lot of '7' is common to both numbers. Hence 3 x 7 = 21 , which is the HCF of 105,& 63.
1 and 5
1, 3, 7, 21
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42 The factors of 63 are: 1, 3, 7, 9, 21, 63 The factors of 105 are: 1, 3, 5, 7, 15, 21, 35, 105 The common factors are: 1, 3, 7, 21 The Greatest Common Factor: GCF = 21
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42 The factors of 63 are: 1, 3, 7, 9, 21, 63 The factors of 105 are: 1, 3, 5, 7, 15, 21, 35, 105 The common factors are: 1, 3, 7, 21 The Greatest Common Factor: GCF = 21
Factors of 63: 1, 3, 7, 9, 21, 63.Factors of 105: 1, 3, 5, 7, 15, 21, 35, 105.Factors of 294: 1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294.GCF (63, 105, 294) = 21The GCF is 21.