What is the Greatest Common Factor of 77280 and 77296?

Greatest common factor (GCF) of 77280 and 77296 is 16.

GCF(77280,77296) = 16

We will now calculate the prime factors of 77280 and 77296, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77280 and 77296.

How to find the GCF of 77280 and 77296?

We will first find the prime factorization of 77280 and 77296. After we will calculate the factors of 77280 and 77296 and find the biggest common factor number .

Step-1: Prime Factorization of 77280

Prime factors of 77280 are 2, 3, 5, 7, 23. Prime factorization of 77280 in exponential form is:

77280 = 2⁵ × 3¹ × 5¹ × 7¹ × 23¹

Step-2: Prime Factorization of 77296

Prime factors of 77296 are 2, 4831. Prime factorization of 77296 in exponential form is:

77296 = 2⁴ × 4831¹

Step-3: Factors of 77280

List of positive integer factors of 77280 that divides 77280 without a remainder.

1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 32, 35, 40, 42, 46, 48, 56, 60, 69, 70, 80, 84, 92, 96, 105, 112, 115, 120, 138, 140, 160, 161, 168, 184, 210, 224, 230, 240, 276, 280, 322, 336, 345, 368, 420, 460, 480, 483, 552, 560, 644, 672, 690, 736, 805, 840, 920, 966, 1104, 1120, 1288, 1380, 1610, 1680, 1840, 1932, 2208, 2415, 2576, 2760, 3220, 3360, 3680, 3864, 4830, 5152, 5520, 6440, 7728, 9660, 11040, 12880, 15456, 19320, 25760, 38640

Step-4: Factors of 77296

List of positive integer factors of 77296 that divides 77280 without a remainder.

1, 2, 4, 8, 16, 4831, 9662, 19324, 38648

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77280 and 77296. The biggest common factor number is the GCF number.
So the greatest common factor 77280 and 77296 is 16.

Also check out the Least Common Multiple of 77280 and 77296