What is the Greatest Common Factor of 83661 and 83680?

Greatest common factor (GCF) of 83661 and 83680 is 1.

GCF(83661,83680) = 1

We will now calculate the prime factors of 83661 and 83680, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 83661 and 83680.

How to find the GCF of 83661 and 83680?

We will first find the prime factorization of 83661 and 83680. After we will calculate the factors of 83661 and 83680 and find the biggest common factor number .

Step-1: Prime Factorization of 83661

Prime factors of 83661 are 3, 79, 353. Prime factorization of 83661 in exponential form is:

83661 = 3¹ × 79¹ × 353¹

Step-2: Prime Factorization of 83680

Prime factors of 83680 are 2, 5, 523. Prime factorization of 83680 in exponential form is:

83680 = 2⁵ × 5¹ × 523¹

Step-3: Factors of 83661

List of positive integer factors of 83661 that divides 83661 without a remainder.

1, 3, 79, 237, 353, 1059, 27887

Step-4: Factors of 83680

List of positive integer factors of 83680 that divides 83661 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 523, 1046, 2092, 2615, 4184, 5230, 8368, 10460, 16736, 20920, 41840

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 83661 and 83680. The biggest common factor number is the GCF number.
So the greatest common factor 83661 and 83680 is 1.

Also check out the Least Common Multiple of 83661 and 83680