What is the Greatest Common Factor of 67861 and 67870?

Greatest common factor (GCF) of 67861 and 67870 is 1.

GCF(67861,67870) = 1

We will now calculate the prime factors of 67861 and 67870, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 67861 and 67870.

How to find the GCF of 67861 and 67870?

We will first find the prime factorization of 67861 and 67870. After we will calculate the factors of 67861 and 67870 and find the biggest common factor number .

Step-1: Prime Factorization of 67861

Prime factors of 67861 are 79, 859. Prime factorization of 67861 in exponential form is:

67861 = 79¹ × 859¹

Step-2: Prime Factorization of 67870

Prime factors of 67870 are 2, 5, 11, 617. Prime factorization of 67870 in exponential form is:

67870 = 2¹ × 5¹ × 11¹ × 617¹

Step-3: Factors of 67861

List of positive integer factors of 67861 that divides 67861 without a remainder.

1, 79, 859

Step-4: Factors of 67870

List of positive integer factors of 67870 that divides 67861 without a remainder.

1, 2, 5, 10, 11, 22, 55, 110, 617, 1234, 3085, 6170, 6787, 13574, 33935

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 67861 and 67870. The biggest common factor number is the GCF number.
So the greatest common factor 67861 and 67870 is 1.

Also check out the Least Common Multiple of 67861 and 67870