Greatest Common Factor of 108, 557, 21

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

• Greatest Common Factor of 108, 557, 21 by common division method
• Greatest Common Factor of 108, 557, 21 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 108

List of positive integer factors of 108 that divides 108 without a remainder.

1,2,3,4,6,9,12,18,27,36,54,108

Factors of 557

List of positive integer factors of 557 that divides 557 without a remainder.

1,557

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 108,557,21 . The biggest common factor number is the GCF number.
So the greatest common factor 108,557,21 is 1.

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

• GCF of 565, 668, 99
• GCF of 287, 521, 48
• GCF of 526, 407, 34
• GCF of 779, 970, 75
• GCF of 439, 834, 61

1. What is the GCF of 108, 557, 21?

Answer: GCF of 108, 557, 21 is 1.

2. How to Find the GCF of 108, 557, 21

Answer: Greatest Common Factor(GCF) of 108, 557, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(108, 557, 21) = 1.