Greatest Common Factor of 23, 21, 79, 981

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

• Greatest Common Factor of 23, 21, 79, 981 by common division method
• Greatest Common Factor of 23, 21, 79, 981 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 23

List of positive integer factors of 23 that divides 23 without a remainder.

1,23

Factors of 21

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

1,3,7,21

Factors of 79

List of positive integer factors of 79 that divides 79 without a remainder.

1,79

Factors of 981

List of positive integer factors of 981 that divides 981 without a remainder.

1,3,9,109,327,981

Greatest Common Factor

We found the factors 23,21,79,981 . The biggest common factor number is the GCF number.
So the greatest common factor 23,21,79,981 is 1.

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

• GCF of 99, 98, 82, 977
• GCF of 24, 96, 76, 119
• GCF of 95, 68, 14, 253
• GCF of 88, 83, 95, 983
• GCF of 78, 50, 41, 876

1. What is the GCF of 23, 21, 79, 981?

Answer: GCF of 23, 21, 79, 981 is 1.

2. How to Find the GCF of 23, 21, 79, 981

Answer: Greatest Common Factor(GCF) of 23, 21, 79, 981 = 1

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

Step 2: Then multiply all the prime factors GCF(23, 21, 79, 981) = 1.