Greatest Common Factor of 65, 32, 81, 80

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

• Greatest Common Factor of 65, 32, 81, 80 by common division method
• Greatest Common Factor of 65, 32, 81, 80 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 65

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

1,5,13,65

Factors of 32

List of positive integer factors of 32 that divides 32 without a remainder.

1,2,4,8,16,32

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

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

Greatest Common Factor

We found the factors 65,32,81,80 . The biggest common factor number is the GCF number.
So the greatest common factor 65,32,81,80 is 1.

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

• GCF of 86, 44, 98, 19
• GCF of 13, 55, 76, 96
• GCF of 76, 89, 67, 54
• GCF of 73, 91, 60, 46
• GCF of 76, 94, 48, 31

1. What is the GCF of 65, 32, 81, 80?

Answer: GCF of 65, 32, 81, 80 is 1.

2. How to Find the GCF of 65, 32, 81, 80

Answer: Greatest Common Factor(GCF) of 65, 32, 81, 80 = 1

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

Step 2: Then multiply all the prime factors GCF(65, 32, 81, 80) = 1.