Greatest Common Factor of 27, 82, 80, 61, 15

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

• Greatest Common Factor of 27, 82, 80, 61, 15 by common division method
• Greatest Common Factor of 27, 82, 80, 61, 15 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 82

List of positive integer factors of 82 that divides 82 without a remainder.

1,2,41,82

Factors of 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

Factors of 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

Factors of 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Greatest Common Factor

We found the factors 27,82,80,61,15 . The biggest common factor number is the GCF number.
So the greatest common factor 27,82,80,61,15 is 1.

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

• GCF of 97, 64, 23, 77, 14
• GCF of 46, 31, 99, 36, 91
• GCF of 76, 65, 38, 70, 13
• GCF of 17, 34, 67, 32, 85
• GCF of 92, 87, 82, 38, 51

1. What is the GCF of 27, 82, 80, 61, 15?

Answer: GCF of 27, 82, 80, 61, 15 is 1.

2. How to Find the GCF of 27, 82, 80, 61, 15

Answer: Greatest Common Factor(GCF) of 27, 82, 80, 61, 15 = 1

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

Step 2: Then multiply all the prime factors GCF(27, 82, 80, 61, 15) = 1.