Greatest Common Factor of 21, 109, 988

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

• Greatest Common Factor of 21, 109, 988 by common division method
• Greatest Common Factor of 21, 109, 988 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 109

List of positive integer factors of 109 that divides 109 without a remainder.

1,109

Factors of 988

List of positive integer factors of 988 that divides 988 without a remainder.

1,2,4,13,19,26,38,52,76,247,494,988

Greatest Common Factor

We found the factors 21,109,988 . The biggest common factor number is the GCF number.
So the greatest common factor 21,109,988 is 1.

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

• GCF of 84, 275, 554
• GCF of 51, 762, 527
• GCF of 37, 749, 902
• GCF of 15, 662, 380
• GCF of 13, 429, 109

1. What is the GCF of 21, 109, 988?

Answer: GCF of 21, 109, 988 is 1.

2. How to Find the GCF of 21, 109, 988

Answer: Greatest Common Factor(GCF) of 21, 109, 988 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 109, 988) = 1.