What is the Greatest Common Factor of 85678 and 85685?

Greatest common factor (GCF) of 85678 and 85685 is 1.

GCF(85678,85685) = 1

We will now calculate the prime factors of 85678 and 85685, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 85678 and 85685.

How to find the GCF of 85678 and 85685?

We will first find the prime factorization of 85678 and 85685. After we will calculate the factors of 85678 and 85685 and find the biggest common factor number .

Step-1: Prime Factorization of 85678

Prime factors of 85678 are 2, 42839. Prime factorization of 85678 in exponential form is:

85678 = 2¹ × 42839¹

Step-2: Prime Factorization of 85685

Prime factors of 85685 are 5, 17137. Prime factorization of 85685 in exponential form is:

85685 = 5¹ × 17137¹

Step-3: Factors of 85678

List of positive integer factors of 85678 that divides 85678 without a remainder.

1, 2, 42839

Step-4: Factors of 85685

List of positive integer factors of 85685 that divides 85678 without a remainder.

1, 5, 17137

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 85678 and 85685. The biggest common factor number is the GCF number.
So the greatest common factor 85678 and 85685 is 1.

Also check out the Least Common Multiple of 85678 and 85685