Greatest Common Factor of 12, 79, 28, 142

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

• Greatest Common Factor of 12, 79, 28, 142 by common division method
• Greatest Common Factor of 12, 79, 28, 142 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 12

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

1,2,3,4,6,12

Factors of 79

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

1,79

Factors of 28

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

1,2,4,7,14,28

Factors of 142

List of positive integer factors of 142 that divides 142 without a remainder.

1,2,71,142

Greatest Common Factor

We found the factors 12,79,28,142 . The biggest common factor number is the GCF number.
So the greatest common factor 12,79,28,142 is 1.

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

• GCF of 97, 89, 89, 735
• GCF of 54, 84, 84, 208
• GCF of 46, 83, 62, 323
• GCF of 44, 29, 82, 537
• GCF of 30, 13, 70, 218

1. What is the GCF of 12, 79, 28, 142?

Answer: GCF of 12, 79, 28, 142 is 1.

2. How to Find the GCF of 12, 79, 28, 142

Answer: Greatest Common Factor(GCF) of 12, 79, 28, 142 = 1

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

Step 2: Then multiply all the prime factors GCF(12, 79, 28, 142) = 1.