Greatest Common Factor of 540, 809, 21

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

• Greatest Common Factor of 540, 809, 21 by common division method
• Greatest Common Factor of 540, 809, 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 540

List of positive integer factors of 540 that divides 540 without a remainder.

1,2,3,4,5,6,9,10,12,15,18,20,27,30,36,45,54,60,90,108,135,180,270,540

Factors of 809

List of positive integer factors of 809 that divides 809 without a remainder.

1,809

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 540,809,21 . The biggest common factor number is the GCF number.
So the greatest common factor 540,809,21 is 1.

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

• GCF of 748, 654, 21
• GCF of 267, 807, 36
• GCF of 520, 627, 20
• GCF of 619, 752, 93
• GCF of 466, 474, 88

1. What is the GCF of 540, 809, 21?

Answer: GCF of 540, 809, 21 is 1.

2. How to Find the GCF of 540, 809, 21

Answer: Greatest Common Factor(GCF) of 540, 809, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(540, 809, 21) = 1.