Greatest Common Factor of 28, 36, 20, 651

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

• Greatest Common Factor of 28, 36, 20, 651 by common division method
• Greatest Common Factor of 28, 36, 20, 651 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 36

List of positive integer factors of 36 that divides 36 without a remainder.

1,2,3,4,6,9,12,18,36

Factors of 20

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

1,2,4,5,10,20

Factors of 651

List of positive integer factors of 651 that divides 651 without a remainder.

1,3,7,21,31,93,217,651

Greatest Common Factor

We found the factors 28,36,20,651 . The biggest common factor number is the GCF number.
So the greatest common factor 28,36,20,651 is 1.

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

• GCF of 68, 17, 18, 846
• GCF of 31, 66, 69, 167
• GCF of 16, 41, 15, 357
• GCF of 87, 74, 59, 535
• GCF of 59, 22, 49, 709

1. What is the GCF of 28, 36, 20, 651?

Answer: GCF of 28, 36, 20, 651 is 1.

2. How to Find the GCF of 28, 36, 20, 651

Answer: Greatest Common Factor(GCF) of 28, 36, 20, 651 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 36, 20, 651) = 1.