The factors of 18 are:
1, 2, 3, 6, 9, 18
The factors of 31 are:
1, 31
The factors of 40 are:
1, 2, 4, 5, 8, 10, 20, 40
The common factors of 18 and 40 are: 1, 2.
The only common factor of 18 and 31 is 1.
1, 2, 3, 6, 9, 18 1, 31
The factors of 18 are: 1, 2, 3, 6, 9, 18The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40
The factors of 31 are: 1, 31 The factors of 54 are: 1, 2, 3, 6, 9, 18, 27, 54
The factors of 18 are: 1, 2, 3, 6, 9, 18 The factors of 31 are: 1, 31 The factors of 41 are: 1, 41
31 and 37
The factors of 18 are: 1, 2, 3, 6, 9, 18 The factors of 26 are: 1, 2, 13, 26 The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40 The factors of 81 are: 1, 3, 9, 27, 81
The factors of 18 are:1, 2, 3, 6, 9, 18The factors of 40 are:1, 2, 4, 5, 8, 10, 20, 40
The prime factors of 30 are 2, 3 and 5. The prime factors of 40 are 2 and 5. The prime numbers between 30 and 40 are 31 and 37.
The greatest (and actually the only) common factor of 18 and 31 is 1The factors of 18 are: 1, 2, 3, 6, 9, 18The factors of 31 are: 1, 31The GCF is 1.
The factors of 31 are 1 and 31 The factors of 120 are 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, and 120