What is the Greatest Common Factor of 77420 and 77431?

Greatest common factor (GCF) of 77420 and 77431 is 1.

GCF(77420,77431) = 1

We will now calculate the prime factors of 77420 and 77431, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77420 and 77431.

How to find the GCF of 77420 and 77431?

We will first find the prime factorization of 77420 and 77431. After we will calculate the factors of 77420 and 77431 and find the biggest common factor number .

Step-1: Prime Factorization of 77420

Prime factors of 77420 are 2, 5, 7, 79. Prime factorization of 77420 in exponential form is:

77420 = 2² × 5¹ × 7² × 79¹

Step-2: Prime Factorization of 77431

Prime factors of 77431 are 77431. Prime factorization of 77431 in exponential form is:

77431 = 77431¹

Step-3: Factors of 77420

List of positive integer factors of 77420 that divides 77420 without a remainder.

1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 79, 98, 140, 158, 196, 245, 316, 395, 490, 553, 790, 980, 1106, 1580, 2212, 2765, 3871, 5530, 7742, 11060, 15484, 19355, 38710

Step-4: Factors of 77431

List of positive integer factors of 77431 that divides 77420 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77420 and 77431. The biggest common factor number is the GCF number.
So the greatest common factor 77420 and 77431 is 1.

Also check out the Least Common Multiple of 77420 and 77431