Greatest Common Factor of 28, 58, 79, 18

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

• Greatest Common Factor of 28, 58, 79, 18 by common division method
• Greatest Common Factor of 28, 58, 79, 18 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 58

List of positive integer factors of 58 that divides 58 without a remainder.

1,2,29,58

Factors of 79

List of positive integer factors of 79 that divides 79 without a remainder.

1,79

Factors of 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Greatest Common Factor

We found the factors 28,58,79,18 . The biggest common factor number is the GCF number.
So the greatest common factor 28,58,79,18 is 1.

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

• GCF of 57, 56, 85, 27
• GCF of 54, 75, 65, 23
• GCF of 31, 44, 85, 17
• GCF of 91, 17, 72, 18
• GCF of 46, 17, 84, 27

1. What is the GCF of 28, 58, 79, 18?

Answer: GCF of 28, 58, 79, 18 is 1.

2. How to Find the GCF of 28, 58, 79, 18

Answer: Greatest Common Factor(GCF) of 28, 58, 79, 18 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 58, 79, 18) = 1.