The Prime Factors and Pair Factors of 484 are 2 × 11 and (1, 484), (2, 242), (4, 121), (11, 44), (22, 22) respectively….Sum of Factors of 484: 931.

The answer is -8 and 10.

84 = 1 x 84, 2 x 42, 3 x 28, 4 x 21, 6 x 14, or 7 x 12. Factors of 84: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84.

Factors of 1572 are 1, 2, 3, 4, 6, 12, 131, 262, 393, 524, 786, 1572.

Factors of 88 are 1, 2, 4, 8, 11, 22, 44, and 88. As 88 is an even number, it will have 2 as its factor. Only composite numbers can have more than two factors.

We found the factors and prime factorization of 45 and 51. The biggest common factor number is the GCF number. So the greatest common factor 45 and 51 is 3.

The GCF of 720 and 207 is 9.

9

Hence, the factors of 720 are 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, and 720.

The Greatest Common Factor (GCF) for 63 and 147, notation CGF(63,147), is 21.

gcf, hcf, gcd (210; 112) = 14 = 2 × 7: greatest (highest) common factor (divisor), calculated. The numbers have common prime factors.

In HCF by long division method we first divide the greater number by the smallest number and then divide the smaller number by the remainder. We continue the process until we get 0 remainder. The divisor is the HCF of the given numbers.