Greatest Common Factor of 97, 54, 21, 665

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

• Greatest Common Factor of 97, 54, 21, 665 by common division method
• Greatest Common Factor of 97, 54, 21, 665 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 97

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

1,97

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 21

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

1,3,7,21

Factors of 665

List of positive integer factors of 665 that divides 665 without a remainder.

1,5,7,19,35,95,133,665

Greatest Common Factor

We found the factors 97,54,21,665 . The biggest common factor number is the GCF number.
So the greatest common factor 97,54,21,665 is 1.

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

• GCF of 82, 81, 98, 720
• GCF of 86, 24, 40, 126
• GCF of 48, 57, 64, 117
• GCF of 11, 14, 85, 913
• GCF of 59, 34, 40, 606

1. What is the GCF of 97, 54, 21, 665?

Answer: GCF of 97, 54, 21, 665 is 1.

2. How to Find the GCF of 97, 54, 21, 665

Answer: Greatest Common Factor(GCF) of 97, 54, 21, 665 = 1

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

Step 2: Then multiply all the prime factors GCF(97, 54, 21, 665) = 1.