What is the Greatest Common Factor of 77270 and 77285?

Greatest common factor (GCF) of 77270 and 77285 is 5.

GCF(77270,77285) = 5

We will now calculate the prime factors of 77270 and 77285, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77270 and 77285.

How to find the GCF of 77270 and 77285?

We will first find the prime factorization of 77270 and 77285. After we will calculate the factors of 77270 and 77285 and find the biggest common factor number .

Step-1: Prime Factorization of 77270

Prime factors of 77270 are 2, 5, 7727. Prime factorization of 77270 in exponential form is:

77270 = 2¹ × 5¹ × 7727¹

Step-2: Prime Factorization of 77285

Prime factors of 77285 are 5, 13, 29, 41. Prime factorization of 77285 in exponential form is:

77285 = 5¹ × 13¹ × 29¹ × 41¹

Step-3: Factors of 77270

List of positive integer factors of 77270 that divides 77270 without a remainder.

1, 2, 5, 10, 7727, 15454, 38635

Step-4: Factors of 77285

List of positive integer factors of 77285 that divides 77270 without a remainder.

1, 5, 13, 29, 41, 65, 145, 205, 377, 533, 1189, 1885, 2665, 5945, 15457

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77270 and 77285. The biggest common factor number is the GCF number.
So the greatest common factor 77270 and 77285 is 5.

Also check out the Least Common Multiple of 77270 and 77285