Greatest Common Factor of 564, 686, 21

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

• Greatest Common Factor of 564, 686, 21 by common division method
• Greatest Common Factor of 564, 686, 21 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 564

List of positive integer factors of 564 that divides 564 without a remainder.

1,2,3,4,6,12,47,94,141,188,282,564

Factors of 686

List of positive integer factors of 686 that divides 686 without a remainder.

1,2,7,14,49,98,343,686

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 564,686,21 . The biggest common factor number is the GCF number.
So the greatest common factor 564,686,21 is 1.

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

• GCF of 662, 321, 53
• GCF of 299, 692, 84
• GCF of 798, 689, 54
• GCF of 749, 745, 19
• GCF of 419, 440, 46

1. What is the GCF of 564, 686, 21?

Answer: GCF of 564, 686, 21 is 1.

2. How to Find the GCF of 564, 686, 21

Answer: Greatest Common Factor(GCF) of 564, 686, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(564, 686, 21) = 1.