What is the Greatest Common Factor of 86500 and 86520?

Greatest common factor (GCF) of 86500 and 86520 is 20.

GCF(86500,86520) = 20

We will now calculate the prime factors of 86500 and 86520, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 86500 and 86520.

How to find the GCF of 86500 and 86520?

We will first find the prime factorization of 86500 and 86520. After we will calculate the factors of 86500 and 86520 and find the biggest common factor number .

Step-1: Prime Factorization of 86500

Prime factors of 86500 are 2, 5, 173. Prime factorization of 86500 in exponential form is:

86500 = 2² × 5³ × 173¹

Step-2: Prime Factorization of 86520

Prime factors of 86520 are 2, 3, 5, 7, 103. Prime factorization of 86520 in exponential form is:

86520 = 2³ × 3¹ × 5¹ × 7¹ × 103¹

Step-3: Factors of 86500

List of positive integer factors of 86500 that divides 86500 without a remainder.

1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 173, 250, 346, 500, 692, 865, 1730, 3460, 4325, 8650, 17300, 21625, 43250

Step-4: Factors of 86520

List of positive integer factors of 86520 that divides 86500 without a remainder.

1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 103, 105, 120, 140, 168, 206, 210, 280, 309, 412, 420, 515, 618, 721, 824, 840, 1030, 1236, 1442, 1545, 2060, 2163, 2472, 2884, 3090, 3605, 4120, 4326, 5768, 6180, 7210, 8652, 10815, 12360, 14420, 17304, 21630, 28840, 43260

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 86500 and 86520. The biggest common factor number is the GCF number.
So the greatest common factor 86500 and 86520 is 20.

Also check out the Least Common Multiple of 86500 and 86520