Greatest Common Factor of 27, 309, 638

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

• Greatest Common Factor of 27, 309, 638 by common division method
• Greatest Common Factor of 27, 309, 638 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 27

List of positive integer factors of 27 that divides 27 without a remainder.

1,3,9,27

Factors of 309

List of positive integer factors of 309 that divides 309 without a remainder.

1,3,103,309

Factors of 638

List of positive integer factors of 638 that divides 638 without a remainder.

1,2,11,22,29,58,319,638

Greatest Common Factor

We found the factors 27,309,638 . The biggest common factor number is the GCF number.
So the greatest common factor 27,309,638 is 1.

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

• GCF of 80, 617, 716
• GCF of 11, 195, 502
• GCF of 16, 815, 287
• GCF of 74, 139, 628
• GCF of 70, 497, 641

1. What is the GCF of 27, 309, 638?

Answer: GCF of 27, 309, 638 is 1.

2. How to Find the GCF of 27, 309, 638

Answer: Greatest Common Factor(GCF) of 27, 309, 638 = 1

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

Step 2: Then multiply all the prime factors GCF(27, 309, 638) = 1.