What is the Greatest Common Factor of 69858 and 69870?

Greatest common factor (GCF) of 69858 and 69870 is 6.

GCF(69858,69870) = 6

We will now calculate the prime factors of 69858 and 69870, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 69858 and 69870.

How to find the GCF of 69858 and 69870?

We will first find the prime factorization of 69858 and 69870. After we will calculate the factors of 69858 and 69870 and find the biggest common factor number .

Step-1: Prime Factorization of 69858

Prime factors of 69858 are 2, 3, 3881. Prime factorization of 69858 in exponential form is:

69858 = 2¹ × 3² × 3881¹

Step-2: Prime Factorization of 69870

Prime factors of 69870 are 2, 3, 5, 17, 137. Prime factorization of 69870 in exponential form is:

69870 = 2¹ × 3¹ × 5¹ × 17¹ × 137¹

Step-3: Factors of 69858

List of positive integer factors of 69858 that divides 69858 without a remainder.

1, 2, 3, 6, 9, 18, 3881, 7762, 11643, 23286, 34929

Step-4: Factors of 69870

List of positive integer factors of 69870 that divides 69858 without a remainder.

1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 137, 170, 255, 274, 411, 510, 685, 822, 1370, 2055, 2329, 4110, 4658, 6987, 11645, 13974, 23290, 34935

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 69858 and 69870. The biggest common factor number is the GCF number.
So the greatest common factor 69858 and 69870 is 6.

Also check out the Least Common Multiple of 69858 and 69870