Greatest Common Factor of 23, 51, 28, 61

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

• Greatest Common Factor of 23, 51, 28, 61 by common division method
• Greatest Common Factor of 23, 51, 28, 61 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 23

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

1,23

Factors of 51

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

1,3,17,51

Factors of 28

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

1,2,4,7,14,28

Factors of 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

Greatest Common Factor

We found the factors 23,51,28,61 . The biggest common factor number is the GCF number.
So the greatest common factor 23,51,28,61 is 1.

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

• GCF of 29, 14, 71, 48
• GCF of 19, 84, 89, 16
• GCF of 66, 86, 42, 12
• GCF of 34, 66, 54, 21
• GCF of 86, 97, 54, 44

1. What is the GCF of 23, 51, 28, 61?

Answer: GCF of 23, 51, 28, 61 is 1.

2. How to Find the GCF of 23, 51, 28, 61

Answer: Greatest Common Factor(GCF) of 23, 51, 28, 61 = 1

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

Step 2: Then multiply all the prime factors GCF(23, 51, 28, 61) = 1.