What is the Greatest Common Factor of 5620 and 5640?

Greatest common factor (GCF) of 5620 and 5640 is 20.

GCF(5620,5640) = 20

We will now calculate the prime factors of 5620 and 5640, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 5620 and 5640.

How to find the GCF of 5620 and 5640?

We will first find the prime factorization of 5620 and 5640. After we will calculate the factors of 5620 and 5640 and find the biggest common factor number .

Step-1: Prime Factorization of 5620

Prime factors of 5620 are 2, 5, 281. Prime factorization of 5620 in exponential form is:

5620 = 2² × 5¹ × 281¹

Step-2: Prime Factorization of 5640

Prime factors of 5640 are 2, 3, 5, 47. Prime factorization of 5640 in exponential form is:

5640 = 2³ × 3¹ × 5¹ × 47¹

Step-3: Factors of 5620

List of positive integer factors of 5620 that divides 5620 without a remainder.

1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810

Step-4: Factors of 5640

List of positive integer factors of 5640 that divides 5620 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 60, 94, 120, 141, 188, 235, 282, 376, 470, 564, 705, 940, 1128, 1410, 1880, 2820

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 5620 and 5640. The biggest common factor number is the GCF number.
So the greatest common factor 5620 and 5640 is 20.

Also check out the Least Common Multiple of 5620 and 5640