Greatest Common Factor of 21, 48, 20, 79, 507

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

• Greatest Common Factor of 21, 48, 20, 79, 507 by common division method
• Greatest Common Factor of 21, 48, 20, 79, 507 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 48

List of positive integer factors of 48 that divides 48 without a remainder.

1,2,3,4,6,8,12,16,24,48

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 79

List of positive integer factors of 79 that divides 79 without a remainder.

1,79

Factors of 507

List of positive integer factors of 507 that divides 507 without a remainder.

1,3,13,39,169,507

Greatest Common Factor

We found the factors 21,48,20,79,507 . The biggest common factor number is the GCF number.
So the greatest common factor 21,48,20,79,507 is 1.

Here are some samples of GCF of two or more Numbers calculations.

• GCF of 47, 21, 31, 16, 265
• GCF of 99, 81, 78, 61, 509
• GCF of 53, 63, 70, 54, 485
• GCF of 65, 83, 20, 84, 191
• GCF of 24, 18, 72, 38, 749

1. What is the GCF of 21, 48, 20, 79, 507?

Answer: GCF of 21, 48, 20, 79, 507 is 1.

2. How to Find the GCF of 21, 48, 20, 79, 507

Answer: Greatest Common Factor(GCF) of 21, 48, 20, 79, 507 = 1

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(21, 48, 20, 79, 507) = 1.