Greatest Common Factor of 28, 98, 51, 109

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

• Greatest Common Factor of 28, 98, 51, 109 by common division method
• Greatest Common Factor of 28, 98, 51, 109 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 98

List of positive integer factors of 98 that divides 98 without a remainder.

1,2,7,14,49,98

Factors of 51

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

1,3,17,51

Factors of 109

List of positive integer factors of 109 that divides 109 without a remainder.

1,109

Greatest Common Factor

We found the factors 28,98,51,109 . The biggest common factor number is the GCF number.
So the greatest common factor 28,98,51,109 is 1.

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

• GCF of 61, 79, 95, 444
• GCF of 31, 73, 21, 195
• GCF of 38, 64, 49, 453
• GCF of 89, 58, 76, 165
• GCF of 21, 57, 62, 120

1. What is the GCF of 28, 98, 51, 109?

Answer: GCF of 28, 98, 51, 109 is 1.

2. How to Find the GCF of 28, 98, 51, 109

Answer: Greatest Common Factor(GCF) of 28, 98, 51, 109 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 98, 51, 109) = 1.