What is the Greatest Common Factor of 64480 and 64490?

Greatest common factor (GCF) of 64480 and 64490 is 10.

GCF(64480,64490) = 10

We will now calculate the prime factors of 64480 and 64490, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 64480 and 64490.

How to find the GCF of 64480 and 64490?

We will first find the prime factorization of 64480 and 64490. After we will calculate the factors of 64480 and 64490 and find the biggest common factor number .

Step-1: Prime Factorization of 64480

Prime factors of 64480 are 2, 5, 13, 31. Prime factorization of 64480 in exponential form is:

64480 = 2⁵ × 5¹ × 13¹ × 31¹

Step-2: Prime Factorization of 64490

Prime factors of 64490 are 2, 5, 6449. Prime factorization of 64490 in exponential form is:

64490 = 2¹ × 5¹ × 6449¹

Step-3: Factors of 64480

List of positive integer factors of 64480 that divides 64480 without a remainder.

1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 403, 416, 496, 520, 620, 806, 992, 1040, 1240, 1612, 2015, 2080, 2480, 3224, 4030, 4960, 6448, 8060, 12896, 16120, 32240

Step-4: Factors of 64490

List of positive integer factors of 64490 that divides 64480 without a remainder.

1, 2, 5, 10, 6449, 12898, 32245

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 64480 and 64490. The biggest common factor number is the GCF number.
So the greatest common factor 64480 and 64490 is 10.

Also check out the Least Common Multiple of 64480 and 64490