Greatest Common Factor of 21, 89, 981

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

• Greatest Common Factor of 21, 89, 981 by common division method
• Greatest Common Factor of 21, 89, 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 21

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

1,3,7,21

Factors of 89

List of positive integer factors of 89 that divides 89 without a remainder.

1,89

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 21,89,981 . The biggest common factor number is the GCF number.
So the greatest common factor 21,89,981 is 1.

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

• GCF of 90, 23, 724
• GCF of 48, 38, 714
• GCF of 88, 96, 388
• GCF of 63, 47, 335
• GCF of 63, 69, 751

1. What is the GCF of 21, 89, 981?

Answer: GCF of 21, 89, 981 is 1.

2. How to Find the GCF of 21, 89, 981

Answer: Greatest Common Factor(GCF) of 21, 89, 981 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 89, 981) = 1.