What is the Greatest Common Factor of 86858 and 86870?

Greatest common factor (GCF) of 86858 and 86870 is 2.

GCF(86858,86870) = 2

We will now calculate the prime factors of 86858 and 86870, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 86858 and 86870.

How to find the GCF of 86858 and 86870?

We will first find the prime factorization of 86858 and 86870. After we will calculate the factors of 86858 and 86870 and find the biggest common factor number .

Step-1: Prime Factorization of 86858

Prime factors of 86858 are 2, 137, 317. Prime factorization of 86858 in exponential form is:

86858 = 2¹ × 137¹ × 317¹

Step-2: Prime Factorization of 86870

Prime factors of 86870 are 2, 5, 7, 17, 73. Prime factorization of 86870 in exponential form is:

86870 = 2¹ × 5¹ × 7¹ × 17¹ × 73¹

Step-3: Factors of 86858

List of positive integer factors of 86858 that divides 86858 without a remainder.

1, 2, 137, 274, 317, 634, 43429

Step-4: Factors of 86870

List of positive integer factors of 86870 that divides 86858 without a remainder.

1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 73, 85, 119, 146, 170, 238, 365, 511, 595, 730, 1022, 1190, 1241, 2482, 2555, 5110, 6205, 8687, 12410, 17374, 43435

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 86858 and 86870. The biggest common factor number is the GCF number.
So the greatest common factor 86858 and 86870 is 2.

Also check out the Least Common Multiple of 86858 and 86870