Greatest Common Factor of 28, 65, 20, 710

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

• Greatest Common Factor of 28, 65, 20, 710 by common division method
• Greatest Common Factor of 28, 65, 20, 710 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 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

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 710

List of positive integer factors of 710 that divides 710 without a remainder.

1,2,5,10,71,142,355,710

Greatest Common Factor

We found the factors 28,65,20,710 . The biggest common factor number is the GCF number.
So the greatest common factor 28,65,20,710 is 1.

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

• GCF of 17, 57, 34, 439
• GCF of 27, 24, 72, 774
• GCF of 82, 28, 60, 492
• GCF of 80, 50, 81, 423
• GCF of 68, 70, 69, 803

1. What is the GCF of 28, 65, 20, 710?

Answer: GCF of 28, 65, 20, 710 is 1.

2. How to Find the GCF of 28, 65, 20, 710

Answer: Greatest Common Factor(GCF) of 28, 65, 20, 710 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 65, 20, 710) = 1.