Greatest Common Factor of 65, 39, 20, 493

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

• Greatest Common Factor of 65, 39, 20, 493 by common division method
• Greatest Common Factor of 65, 39, 20, 493 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 39

List of positive integer factors of 39 that divides 39 without a remainder.

1,3,13,39

Factors of 20

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

1,2,4,5,10,20

Factors of 493

List of positive integer factors of 493 that divides 493 without a remainder.

1,17,29,493

Greatest Common Factor

We found the factors 65,39,20,493 . The biggest common factor number is the GCF number.
So the greatest common factor 65,39,20,493 is 1.

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

• GCF of 34, 70, 22, 963
• GCF of 50, 32, 86, 334
• GCF of 32, 49, 44, 201
• GCF of 93, 56, 31, 227
• GCF of 84, 90, 29, 336

1. What is the GCF of 65, 39, 20, 493?

Answer: GCF of 65, 39, 20, 493 is 1.

2. How to Find the GCF of 65, 39, 20, 493

Answer: Greatest Common Factor(GCF) of 65, 39, 20, 493 = 1

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

Step 2: Then multiply all the prime factors GCF(65, 39, 20, 493) = 1.