Greatest Common Factor of 65, 20, 63, 678

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

• Greatest Common Factor of 65, 20, 63, 678 by common division method
• Greatest Common Factor of 65, 20, 63, 678 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 20

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

1,2,4,5,10,20

Factors of 63

List of positive integer factors of 63 that divides 63 without a remainder.

1,3,7,9,21,63

Factors of 678

List of positive integer factors of 678 that divides 678 without a remainder.

1,2,3,6,113,226,339,678

Greatest Common Factor

We found the factors 65,20,63,678 . The biggest common factor number is the GCF number.
So the greatest common factor 65,20,63,678 is 1.

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

• GCF of 54, 60, 83, 153
• GCF of 19, 86, 99, 290
• GCF of 69, 40, 73, 684
• GCF of 61, 26, 98, 291
• GCF of 82, 44, 99, 800

1. What is the GCF of 65, 20, 63, 678?

Answer: GCF of 65, 20, 63, 678 is 1.

2. How to Find the GCF of 65, 20, 63, 678

Answer: Greatest Common Factor(GCF) of 65, 20, 63, 678 = 1

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

Step 2: Then multiply all the prime factors GCF(65, 20, 63, 678) = 1.