Greatest Common Factor of 28, 97, 65, 961

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

• Greatest Common Factor of 28, 97, 65, 961 by common division method
• Greatest Common Factor of 28, 97, 65, 961 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 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

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 961

List of positive integer factors of 961 that divides 961 without a remainder.

1,31,961

Greatest Common Factor

We found the factors 28,97,65,961 . The biggest common factor number is the GCF number.
So the greatest common factor 28,97,65,961 is 1.

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

• GCF of 21, 36, 90, 511
• GCF of 91, 28, 80, 140
• GCF of 73, 61, 30, 697
• GCF of 52, 67, 16, 199
• GCF of 65, 93, 27, 715

1. What is the GCF of 28, 97, 65, 961?

Answer: GCF of 28, 97, 65, 961 is 1.

2. How to Find the GCF of 28, 97, 65, 961

Answer: Greatest Common Factor(GCF) of 28, 97, 65, 961 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 97, 65, 961) = 1.