Greatest Common Factor of 21, 191, 321

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

• Greatest Common Factor of 21, 191, 321 by common division method
• Greatest Common Factor of 21, 191, 321 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 191

List of positive integer factors of 191 that divides 191 without a remainder.

1,191

Factors of 321

List of positive integer factors of 321 that divides 321 without a remainder.

1,3,107,321

Greatest Common Factor

We found the factors 21,191,321 . The biggest common factor number is the GCF number.
So the greatest common factor 21,191,321 is 1.

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

• GCF of 53, 553, 515
• GCF of 47, 162, 833
• GCF of 86, 743, 435
• GCF of 28, 111, 939
• GCF of 56, 708, 828

1. What is the GCF of 21, 191, 321?

Answer: GCF of 21, 191, 321 is 1.

2. How to Find the GCF of 21, 191, 321

Answer: Greatest Common Factor(GCF) of 21, 191, 321 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 191, 321) = 1.