What is the Greatest Common Factor of 64520 and 64540?

Greatest common factor (GCF) of 64520 and 64540 is 20.

GCF(64520,64540) = 20

We will now calculate the prime factors of 64520 and 64540, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 64520 and 64540.

How to find the GCF of 64520 and 64540?

We will first find the prime factorization of 64520 and 64540. After we will calculate the factors of 64520 and 64540 and find the biggest common factor number .

Step-1: Prime Factorization of 64520

Prime factors of 64520 are 2, 5, 1613. Prime factorization of 64520 in exponential form is:

64520 = 2³ × 5¹ × 1613¹

Step-2: Prime Factorization of 64540

Prime factors of 64540 are 2, 5, 7, 461. Prime factorization of 64540 in exponential form is:

64540 = 2² × 5¹ × 7¹ × 461¹

Step-3: Factors of 64520

List of positive integer factors of 64520 that divides 64520 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 1613, 3226, 6452, 8065, 12904, 16130, 32260

Step-4: Factors of 64540

List of positive integer factors of 64540 that divides 64520 without a remainder.

1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 461, 922, 1844, 2305, 3227, 4610, 6454, 9220, 12908, 16135, 32270

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 64520 and 64540. The biggest common factor number is the GCF number.
So the greatest common factor 64520 and 64540 is 20.

Also check out the Least Common Multiple of 64520 and 64540