What is the Greatest Common Factor of 79858 and 79870?

Greatest common factor (GCF) of 79858 and 79870 is 2.

GCF(79858,79870) = 2

We will now calculate the prime factors of 79858 and 79870, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 79858 and 79870.

How to find the GCF of 79858 and 79870?

We will first find the prime factorization of 79858 and 79870. After we will calculate the factors of 79858 and 79870 and find the biggest common factor number .

Step-1: Prime Factorization of 79858

Prime factors of 79858 are 2, 39929. Prime factorization of 79858 in exponential form is:

79858 = 2¹ × 39929¹

Step-2: Prime Factorization of 79870

Prime factors of 79870 are 2, 5, 7, 163. Prime factorization of 79870 in exponential form is:

79870 = 2¹ × 5¹ × 7² × 163¹

Step-3: Factors of 79858

List of positive integer factors of 79858 that divides 79858 without a remainder.

1, 2, 39929

Step-4: Factors of 79870

List of positive integer factors of 79870 that divides 79858 without a remainder.

1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 163, 245, 326, 490, 815, 1141, 1630, 2282, 5705, 7987, 11410, 15974, 39935

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 79858 and 79870. The biggest common factor number is the GCF number.
So the greatest common factor 79858 and 79870 is 2.

Also check out the Least Common Multiple of 79858 and 79870