What is the Greatest Common Factor of 62420 and 62440?

Greatest common factor (GCF) of 62420 and 62440 is 20.

GCF(62420,62440) = 20

We will now calculate the prime factors of 62420 and 62440, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 62420 and 62440.

How to find the GCF of 62420 and 62440?

We will first find the prime factorization of 62420 and 62440. After we will calculate the factors of 62420 and 62440 and find the biggest common factor number .

Step-1: Prime Factorization of 62420

Prime factors of 62420 are 2, 5, 3121. Prime factorization of 62420 in exponential form is:

62420 = 2² × 5¹ × 3121¹

Step-2: Prime Factorization of 62440

Prime factors of 62440 are 2, 5, 7, 223. Prime factorization of 62440 in exponential form is:

62440 = 2³ × 5¹ × 7¹ × 223¹

Step-3: Factors of 62420

List of positive integer factors of 62420 that divides 62420 without a remainder.

1, 2, 4, 5, 10, 20, 3121, 6242, 12484, 15605, 31210

Step-4: Factors of 62440

List of positive integer factors of 62440 that divides 62420 without a remainder.

1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 223, 280, 446, 892, 1115, 1561, 1784, 2230, 3122, 4460, 6244, 7805, 8920, 12488, 15610, 31220

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 62420 and 62440. The biggest common factor number is the GCF number.
So the greatest common factor 62420 and 62440 is 20.

Also check out the Least Common Multiple of 62420 and 62440