The GCF is 1.
The factors of 77 are: 1, 7, 11, 77 The factors of 51 are: 1, 3, 17, 51 The only common integer factor of 77 and 51 is 1.
The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is 1.
19 * * * * * No. Try 17, the correct answer!
51 + 12 + 19 + 1 = 83 - 77 = 6 = Friday ■
The GCF is 7.
The GCF is 11.
The GCF is 11.
The GCF is 77.
The GCF is 11.