Greatest Common Factor of 28, 88, 65, 665

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

• Greatest Common Factor of 28, 88, 65, 665 by common division method
• Greatest Common Factor of 28, 88, 65, 665 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 88

List of positive integer factors of 88 that divides 88 without a remainder.

1,2,4,8,11,22,44,88

Factors of 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 665

List of positive integer factors of 665 that divides 665 without a remainder.

1,5,7,19,35,95,133,665

Greatest Common Factor

We found the factors 28,88,65,665 . The biggest common factor number is the GCF number.
So the greatest common factor 28,88,65,665 is 1.

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

• GCF of 93, 89, 70, 229
• GCF of 13, 94, 26, 715
• GCF of 85, 25, 21, 373
• GCF of 11, 52, 12, 954
• GCF of 79, 14, 48, 812

1. What is the GCF of 28, 88, 65, 665?

Answer: GCF of 28, 88, 65, 665 is 1.

2. How to Find the GCF of 28, 88, 65, 665

Answer: Greatest Common Factor(GCF) of 28, 88, 65, 665 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 88, 65, 665) = 1.