Their factors are:
77: 1, 7, 11, 77
84: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
1 and 7.
1 and 7
The greatest common factor of 77 and 84 is 7.
77 + 84 = 161
The factors of 77 are:1, 7, 11, 77The factors of 84 are:1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84The common factors are:1, 7The Greatest Common Factor (GCF) is:7
By prime factorization. 7 x 11 = 77 2 x 2 x 3 x 7 = 84 The common factors are 1 and 7. The GCF is 7.
The greatest common factor of 42, 77 and 84 is 7.
The GCF is 7.
7. 7x7=49. 7x11=77. 7x12=84.
The GCF is 7.
84 - 7 = 77
HCF(21, 77, 84) = 7.