Greatest Common Factor of 54, 97, 65, 21

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

• Greatest Common Factor of 54, 97, 65, 21 by common division method
• Greatest Common Factor of 54, 97, 65, 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 54

List of positive integer factors of 54 that divides 54 without a remainder.

1,2,3,6,9,18,27,54

Factors of 97

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

1,97

Factors of 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

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 54,97,65,21 . The biggest common factor number is the GCF number.
So the greatest common factor 54,97,65,21 is 1.

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

• GCF of 86, 19, 23, 27
• GCF of 95, 53, 61, 82
• GCF of 32, 99, 20, 39
• GCF of 17, 11, 69, 12
• GCF of 81, 16, 58, 98

1. What is the GCF of 54, 97, 65, 21?

Answer: GCF of 54, 97, 65, 21 is 1.

2. How to Find the GCF of 54, 97, 65, 21

Answer: Greatest Common Factor(GCF) of 54, 97, 65, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(54, 97, 65, 21) = 1.