Greatest Common Factor of 97, 21, 663

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

• Greatest Common Factor of 97, 21, 663 by common division method
• Greatest Common Factor of 97, 21, 663 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 21

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

1,3,7,21

Factors of 663

List of positive integer factors of 663 that divides 663 without a remainder.

1,3,13,17,39,51,221,663

Greatest Common Factor

We found the factors 97,21,663 . The biggest common factor number is the GCF number.
So the greatest common factor 97,21,663 is 1.

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

• GCF of 67, 67, 400
• GCF of 68, 69, 629
• GCF of 20, 37, 134
• GCF of 26, 47, 958
• GCF of 72, 14, 263

1. What is the GCF of 97, 21, 663?

Answer: GCF of 97, 21, 663 is 1.

2. How to Find the GCF of 97, 21, 663

Answer: Greatest Common Factor(GCF) of 97, 21, 663 = 1

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

Step 2: Then multiply all the prime factors GCF(97, 21, 663) = 1.