What is the Greatest Common Factor of 63505 and 63520?

Greatest common factor (GCF) of 63505 and 63520 is 5.

GCF(63505,63520) = 5

We will now calculate the prime factors of 63505 and 63520, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 63505 and 63520.

How to find the GCF of 63505 and 63520?

We will first find the prime factorization of 63505 and 63520. After we will calculate the factors of 63505 and 63520 and find the biggest common factor number .

Step-1: Prime Factorization of 63505

Prime factors of 63505 are 5, 13, 977. Prime factorization of 63505 in exponential form is:

63505 = 5¹ × 13¹ × 977¹

Step-2: Prime Factorization of 63520

Prime factors of 63520 are 2, 5, 397. Prime factorization of 63520 in exponential form is:

63520 = 2⁵ × 5¹ × 397¹

Step-3: Factors of 63505

List of positive integer factors of 63505 that divides 63505 without a remainder.

1, 5, 13, 65, 977, 4885, 12701

Step-4: Factors of 63520

List of positive integer factors of 63520 that divides 63505 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 397, 794, 1588, 1985, 3176, 3970, 6352, 7940, 12704, 15880, 31760

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 63505 and 63520. The biggest common factor number is the GCF number.
So the greatest common factor 63505 and 63520 is 5.

Also check out the Least Common Multiple of 63505 and 63520