What is the Greatest Common Factor of 45620 and 45640?

Greatest common factor (GCF) of 45620 and 45640 is 20.

GCF(45620,45640) = 20

We will now calculate the prime factors of 45620 and 45640, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 45620 and 45640.

How to find the GCF of 45620 and 45640?

We will first find the prime factorization of 45620 and 45640. After we will calculate the factors of 45620 and 45640 and find the biggest common factor number .

Step-1: Prime Factorization of 45620

Prime factors of 45620 are 2, 5, 2281. Prime factorization of 45620 in exponential form is:

45620 = 2² × 5¹ × 2281¹

Step-2: Prime Factorization of 45640

Prime factors of 45640 are 2, 5, 7, 163. Prime factorization of 45640 in exponential form is:

45640 = 2³ × 5¹ × 7¹ × 163¹

Step-3: Factors of 45620

List of positive integer factors of 45620 that divides 45620 without a remainder.

1, 2, 4, 5, 10, 20, 2281, 4562, 9124, 11405, 22810

Step-4: Factors of 45640

List of positive integer factors of 45640 that divides 45620 without a remainder.

1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 163, 280, 326, 652, 815, 1141, 1304, 1630, 2282, 3260, 4564, 5705, 6520, 9128, 11410, 22820

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 45620 and 45640. The biggest common factor number is the GCF number.
So the greatest common factor 45620 and 45640 is 20.

Also check out the Least Common Multiple of 45620 and 45640