Greatest Common Factor of 28, 15, 56, 238

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

• Greatest Common Factor of 28, 15, 56, 238 by common division method
• Greatest Common Factor of 28, 15, 56, 238 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 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

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 238

List of positive integer factors of 238 that divides 238 without a remainder.

1,2,7,14,17,34,119,238

Greatest Common Factor

We found the factors 28,15,56,238 . The biggest common factor number is the GCF number.
So the greatest common factor 28,15,56,238 is 1.

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

• GCF of 66, 79, 56, 192
• GCF of 12, 73, 70, 627
• GCF of 95, 37, 54, 396
• GCF of 49, 26, 17, 205
• GCF of 97, 50, 36, 620

1. What is the GCF of 28, 15, 56, 238?

Answer: GCF of 28, 15, 56, 238 is 1.

2. How to Find the GCF of 28, 15, 56, 238

Answer: Greatest Common Factor(GCF) of 28, 15, 56, 238 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 15, 56, 238) = 1.