Greatest Common Factor of 28, 78, 56, 157

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

• Greatest Common Factor of 28, 78, 56, 157 by common division method
• Greatest Common Factor of 28, 78, 56, 157 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 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

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 157

List of positive integer factors of 157 that divides 157 without a remainder.

1,157

Greatest Common Factor

We found the factors 28,78,56,157 . The biggest common factor number is the GCF number.
So the greatest common factor 28,78,56,157 is 1.

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

• GCF of 98, 53, 23, 810
• GCF of 61, 96, 77, 720
• GCF of 97, 32, 23, 328
• GCF of 93, 82, 50, 531
• GCF of 77, 50, 83, 355

1. What is the GCF of 28, 78, 56, 157?

Answer: GCF of 28, 78, 56, 157 is 1.

2. How to Find the GCF of 28, 78, 56, 157

Answer: Greatest Common Factor(GCF) of 28, 78, 56, 157 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 78, 56, 157) = 1.