What is the Greatest Common Factor of 68686 and 68690?

Greatest common factor (GCF) of 68686 and 68690 is 2.

GCF(68686,68690) = 2

We will now calculate the prime factors of 68686 and 68690, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 68686 and 68690.

How to find the GCF of 68686 and 68690?

We will first find the prime factorization of 68686 and 68690. After we will calculate the factors of 68686 and 68690 and find the biggest common factor number .

Step-1: Prime Factorization of 68686

Prime factors of 68686 are 2, 61, 563. Prime factorization of 68686 in exponential form is:

68686 = 2¹ × 61¹ × 563¹

Step-2: Prime Factorization of 68690

Prime factors of 68690 are 2, 5, 6869. Prime factorization of 68690 in exponential form is:

68690 = 2¹ × 5¹ × 6869¹

Step-3: Factors of 68686

List of positive integer factors of 68686 that divides 68686 without a remainder.

1, 2, 61, 122, 563, 1126, 34343

Step-4: Factors of 68690

List of positive integer factors of 68690 that divides 68686 without a remainder.

1, 2, 5, 10, 6869, 13738, 34345

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 68686 and 68690. The biggest common factor number is the GCF number.
So the greatest common factor 68686 and 68690 is 2.

Also check out the Least Common Multiple of 68686 and 68690