Greatest Common Factor of 21, 43, 97, 108

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

• Greatest Common Factor of 21, 43, 97, 108 by common division method
• Greatest Common Factor of 21, 43, 97, 108 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 43

List of positive integer factors of 43 that divides 43 without a remainder.

1,43

Factors of 97

List of positive integer factors of 97 that divides 97 without a remainder.

1,97

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

Greatest Common Factor

We found the factors 21,43,97,108 . The biggest common factor number is the GCF number.
So the greatest common factor 21,43,97,108 is 1.

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

• GCF of 94, 64, 43, 250
• GCF of 18, 88, 74, 511
• GCF of 69, 56, 23, 132
• GCF of 42, 77, 28, 484
• GCF of 13, 96, 59, 685

1. What is the GCF of 21, 43, 97, 108?

Answer: GCF of 21, 43, 97, 108 is 1.

2. How to Find the GCF of 21, 43, 97, 108

Answer: Greatest Common Factor(GCF) of 21, 43, 97, 108 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 43, 97, 108) = 1.