What is the Greatest Common Factor of 70857 and 70875?

Greatest common factor (GCF) of 70857 and 70875 is 9.

GCF(70857,70875) = 9

We will now calculate the prime factors of 70857 and 70875, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 70857 and 70875.

How to find the GCF of 70857 and 70875?

We will first find the prime factorization of 70857 and 70875. After we will calculate the factors of 70857 and 70875 and find the biggest common factor number .

Step-1: Prime Factorization of 70857

Prime factors of 70857 are 3, 7873. Prime factorization of 70857 in exponential form is:

70857 = 3² × 7873¹

Step-2: Prime Factorization of 70875

Prime factors of 70875 are 3, 5, 7. Prime factorization of 70875 in exponential form is:

70875 = 3⁴ × 5³ × 7¹

Step-3: Factors of 70857

List of positive integer factors of 70857 that divides 70857 without a remainder.

1, 3, 9, 7873, 23619

Step-4: Factors of 70875

List of positive integer factors of 70875 that divides 70857 without a remainder.

1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 81, 105, 125, 135, 175, 189, 225, 315, 375, 405, 525, 567, 675, 875, 945, 1125, 1575, 2025, 2625, 2835, 3375, 4725, 7875, 10125, 14175, 23625

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 70857 and 70875. The biggest common factor number is the GCF number.
So the greatest common factor 70857 and 70875 is 9.

Also check out the Least Common Multiple of 70857 and 70875