What is the Greatest Common Factor of 42670 and 42686?

Greatest common factor (GCF) of 42670 and 42686 is 2.

GCF(42670,42686) = 2

We will now calculate the prime factors of 42670 and 42686, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42670 and 42686.

How to find the GCF of 42670 and 42686?

We will first find the prime factorization of 42670 and 42686. After we will calculate the factors of 42670 and 42686 and find the biggest common factor number .

Step-1: Prime Factorization of 42670

Prime factors of 42670 are 2, 5, 17, 251. Prime factorization of 42670 in exponential form is:

42670 = 2¹ × 5¹ × 17¹ × 251¹

Step-2: Prime Factorization of 42686

Prime factors of 42686 are 2, 7, 3049. Prime factorization of 42686 in exponential form is:

42686 = 2¹ × 7¹ × 3049¹

Step-3: Factors of 42670

List of positive integer factors of 42670 that divides 42670 without a remainder.

1, 2, 5, 10, 17, 34, 85, 170, 251, 502, 1255, 2510, 4267, 8534, 21335

Step-4: Factors of 42686

List of positive integer factors of 42686 that divides 42670 without a remainder.

1, 2, 7, 14, 3049, 6098, 21343

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42670 and 42686. The biggest common factor number is the GCF number.
So the greatest common factor 42670 and 42686 is 2.

Also check out the Least Common Multiple of 42670 and 42686