Greatest Common Factor of 21, 61, 52, 57, 772

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

• Greatest Common Factor of 21, 61, 52, 57, 772 by common division method
• Greatest Common Factor of 21, 61, 52, 57, 772 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 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

Factors of 52

List of positive integer factors of 52 that divides 52 without a remainder.

1,2,4,13,26,52

Factors of 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

Factors of 772

List of positive integer factors of 772 that divides 772 without a remainder.

1,2,4,193,386,772

Greatest Common Factor

We found the factors 21,61,52,57,772 . The biggest common factor number is the GCF number.
So the greatest common factor 21,61,52,57,772 is 1.

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

• GCF of 85, 91, 21, 49, 484
• GCF of 77, 49, 50, 35, 843
• GCF of 64, 50, 75, 31, 888
• GCF of 53, 19, 68, 27, 835
• GCF of 97, 50, 80, 76, 885

1. What is the GCF of 21, 61, 52, 57, 772?

Answer: GCF of 21, 61, 52, 57, 772 is 1.

2. How to Find the GCF of 21, 61, 52, 57, 772

Answer: Greatest Common Factor(GCF) of 21, 61, 52, 57, 772 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 61, 52, 57, 772) = 1.