What is the Greatest Common Factor of 87665 and 87685?

Greatest common factor (GCF) of 87665 and 87685 is 5.

GCF(87665,87685) = 5

We will now calculate the prime factors of 87665 and 87685, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 87665 and 87685.

How to find the GCF of 87665 and 87685?

We will first find the prime factorization of 87665 and 87685. After we will calculate the factors of 87665 and 87685 and find the biggest common factor number .

Step-1: Prime Factorization of 87665

Prime factors of 87665 are 5, 89, 197. Prime factorization of 87665 in exponential form is:

87665 = 5¹ × 89¹ × 197¹

Step-2: Prime Factorization of 87685

Prime factors of 87685 are 5, 13, 19, 71. Prime factorization of 87685 in exponential form is:

87685 = 5¹ × 13¹ × 19¹ × 71¹

Step-3: Factors of 87665

List of positive integer factors of 87665 that divides 87665 without a remainder.

1, 5, 89, 197, 445, 985, 17533

Step-4: Factors of 87685

List of positive integer factors of 87685 that divides 87665 without a remainder.

1, 5, 13, 19, 65, 71, 95, 247, 355, 923, 1235, 1349, 4615, 6745, 17537

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 87665 and 87685. The biggest common factor number is the GCF number.
So the greatest common factor 87665 and 87685 is 5.

Also check out the Least Common Multiple of 87665 and 87685