Greatest Common Factor of 65, 51, 63, 40

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

• Greatest Common Factor of 65, 51, 63, 40 by common division method
• Greatest Common Factor of 65, 51, 63, 40 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 51

List of positive integer factors of 51 that divides 51 without a remainder.

1,3,17,51

Factors of 63

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

1,3,7,9,21,63

Factors of 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

Greatest Common Factor

We found the factors 65,51,63,40 . The biggest common factor number is the GCF number.
So the greatest common factor 65,51,63,40 is 1.

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

• GCF of 70, 72, 51, 57
• GCF of 19, 67, 92, 24
• GCF of 65, 54, 97, 26
• GCF of 31, 30, 30, 68
• GCF of 74, 38, 27, 15

1. What is the GCF of 65, 51, 63, 40?

Answer: GCF of 65, 51, 63, 40 is 1.

2. How to Find the GCF of 65, 51, 63, 40

Answer: Greatest Common Factor(GCF) of 65, 51, 63, 40 = 1

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

Step 2: Then multiply all the prime factors GCF(65, 51, 63, 40) = 1.