Greatest Common Factor of 21, 421, 971

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

• Greatest Common Factor of 21, 421, 971 by common division method
• Greatest Common Factor of 21, 421, 971 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 421

List of positive integer factors of 421 that divides 421 without a remainder.

1,421

Factors of 971

List of positive integer factors of 971 that divides 971 without a remainder.

1,971

Greatest Common Factor

We found the factors 21,421,971 . The biggest common factor number is the GCF number.
So the greatest common factor 21,421,971 is 1.

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

• GCF of 27, 214, 141
• GCF of 18, 793, 865
• GCF of 30, 767, 613
• GCF of 37, 187, 208
• GCF of 74, 743, 615

1. What is the GCF of 21, 421, 971?

Answer: GCF of 21, 421, 971 is 1.

2. How to Find the GCF of 21, 421, 971

Answer: Greatest Common Factor(GCF) of 21, 421, 971 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 421, 971) = 1.