Greatest Common Factor of 57, 30, 80, 165

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

• Greatest Common Factor of 57, 30, 80, 165 by common division method
• Greatest Common Factor of 57, 30, 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 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

Factors of 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

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 57,30,80,165 . The biggest common factor number is the GCF number.
So the greatest common factor 57,30,80,165 is 1.

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

• GCF of 68, 18, 35, 424
• GCF of 77, 34, 33, 766
• GCF of 27, 52, 75, 257
• GCF of 66, 12, 82, 334
• GCF of 56, 92, 18, 878

1. What is the GCF of 57, 30, 80, 165?

Answer: GCF of 57, 30, 80, 165 is 1.

2. How to Find the GCF of 57, 30, 80, 165

Answer: Greatest Common Factor(GCF) of 57, 30, 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(57, 30, 80, 165) = 1.