What is the Greatest Common Factor of 77690 and 77710?

Greatest common factor (GCF) of 77690 and 77710 is 10.

GCF(77690,77710) = 10

We will now calculate the prime factors of 77690 and 77710, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77690 and 77710.

How to find the GCF of 77690 and 77710?

We will first find the prime factorization of 77690 and 77710. After we will calculate the factors of 77690 and 77710 and find the biggest common factor number .

Step-1: Prime Factorization of 77690

Prime factors of 77690 are 2, 5, 17, 457. Prime factorization of 77690 in exponential form is:

77690 = 2¹ × 5¹ × 17¹ × 457¹

Step-2: Prime Factorization of 77710

Prime factors of 77710 are 2, 5, 19, 409. Prime factorization of 77710 in exponential form is:

77710 = 2¹ × 5¹ × 19¹ × 409¹

Step-3: Factors of 77690

List of positive integer factors of 77690 that divides 77690 without a remainder.

1, 2, 5, 10, 17, 34, 85, 170, 457, 914, 2285, 4570, 7769, 15538, 38845

Step-4: Factors of 77710

List of positive integer factors of 77710 that divides 77690 without a remainder.

1, 2, 5, 10, 19, 38, 95, 190, 409, 818, 2045, 4090, 7771, 15542, 38855

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77690 and 77710. The biggest common factor number is the GCF number.
So the greatest common factor 77690 and 77710 is 10.

Also check out the Least Common Multiple of 77690 and 77710