Greatest Common Factor of 81, 80, 165

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

• Greatest Common Factor of 81, 80, 165 by common division method
• Greatest Common Factor of 81, 80, 165 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 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

Factors of 165

List of positive integer factors of 165 that divides 165 without a remainder.

1,3,5,11,15,33,55,165

Greatest Common Factor

We found the factors 81,80,165 . The biggest common factor number is the GCF number.
So the greatest common factor 81,80,165 is 1.

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

• GCF of 47, 47, 640
• GCF of 26, 11, 857
• GCF of 80, 51, 732
• GCF of 99, 78, 396
• GCF of 69, 86, 679

1. What is the GCF of 81, 80, 165?

Answer: GCF of 81, 80, 165 is 1.

2. How to Find the GCF of 81, 80, 165

Answer: Greatest Common Factor(GCF) of 81, 80, 165 = 1

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

Step 2: Then multiply all the prime factors GCF(81, 80, 165) = 1.