Greatest Common Factor of 27, 72, 65, 645

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

• Greatest Common Factor of 27, 72, 65, 645 by common division method
• Greatest Common Factor of 27, 72, 65, 645 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 72

List of positive integer factors of 72 that divides 72 without a remainder.

1,2,3,4,6,8,9,12,18,24,36,72

Factors of 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 645

List of positive integer factors of 645 that divides 645 without a remainder.

1,3,5,15,43,129,215,645

Greatest Common Factor

We found the factors 27,72,65,645 . The biggest common factor number is the GCF number.
So the greatest common factor 27,72,65,645 is 1.

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

• GCF of 50, 69, 40, 585
• GCF of 96, 44, 10, 773
• GCF of 21, 95, 69, 797
• GCF of 16, 50, 68, 143
• GCF of 70, 95, 29, 554

1. What is the GCF of 27, 72, 65, 645?

Answer: GCF of 27, 72, 65, 645 is 1.

2. How to Find the GCF of 27, 72, 65, 645

Answer: Greatest Common Factor(GCF) of 27, 72, 65, 645 = 1

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

Step 2: Then multiply all the prime factors GCF(27, 72, 65, 645) = 1.