Greatest Common Factor of 27, 24, 20, 647

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

• Greatest Common Factor of 27, 24, 20, 647 by common division method
• Greatest Common Factor of 27, 24, 20, 647 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 24

List of positive integer factors of 24 that divides 24 without a remainder.

1,2,3,4,6,8,12,24

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 647

List of positive integer factors of 647 that divides 647 without a remainder.

1,647

Greatest Common Factor

We found the factors 27,24,20,647 . The biggest common factor number is the GCF number.
So the greatest common factor 27,24,20,647 is 1.

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

• GCF of 24, 72, 44, 102
• GCF of 91, 78, 73, 413
• GCF of 56, 69, 48, 866
• GCF of 76, 75, 25, 463
• GCF of 17, 40, 48, 924

1. What is the GCF of 27, 24, 20, 647?

Answer: GCF of 27, 24, 20, 647 is 1.

2. How to Find the GCF of 27, 24, 20, 647

Answer: Greatest Common Factor(GCF) of 27, 24, 20, 647 = 1

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

Step 2: Then multiply all the prime factors GCF(27, 24, 20, 647) = 1.