Greatest Common Factor of 28, 21, 547

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

• Greatest Common Factor of 28, 21, 547 by common division method
• Greatest Common Factor of 28, 21, 547 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 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

Factors of 21

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

1,3,7,21

Factors of 547

List of positive integer factors of 547 that divides 547 without a remainder.

1,547

Greatest Common Factor

We found the factors 28,21,547 . The biggest common factor number is the GCF number.
So the greatest common factor 28,21,547 is 1.

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

• GCF of 73, 77, 966
• GCF of 26, 44, 993
• GCF of 57, 83, 642
• GCF of 96, 71, 457
• GCF of 58, 93, 380

1. What is the GCF of 28, 21, 547?

Answer: GCF of 28, 21, 547 is 1.

2. How to Find the GCF of 28, 21, 547

Answer: Greatest Common Factor(GCF) of 28, 21, 547 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 21, 547) = 1.