Greatest Common Factor of 28, 56, 12, 23

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

• Greatest Common Factor of 28, 56, 12, 23 by common division method
• Greatest Common Factor of 28, 56, 12, 23 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 56

List of positive integer factors of 56 that divides 56 without a remainder.

1,2,4,7,8,14,28,56

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 23

List of positive integer factors of 23 that divides 23 without a remainder.

1,23

Greatest Common Factor

We found the factors 28,56,12,23 . The biggest common factor number is the GCF number.
So the greatest common factor 28,56,12,23 is 1.

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

• GCF of 77, 78, 56, 27
• GCF of 96, 97, 42, 10
• GCF of 24, 21, 73, 42
• GCF of 76, 17, 31, 97
• GCF of 81, 58, 22, 52

1. What is the GCF of 28, 56, 12, 23?

Answer: GCF of 28, 56, 12, 23 is 1.

2. How to Find the GCF of 28, 56, 12, 23

Answer: Greatest Common Factor(GCF) of 28, 56, 12, 23 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 56, 12, 23) = 1.