Greatest Common Factor of 28, 51, 11, 45

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

• Greatest Common Factor of 28, 51, 11, 45 by common division method
• Greatest Common Factor of 28, 51, 11, 45 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 51

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

1,3,17,51

Factors of 11

List of positive integer factors of 11 that divides 11 without a remainder.

1,11

Factors of 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Greatest Common Factor

We found the factors 28,51,11,45 . The biggest common factor number is the GCF number.
So the greatest common factor 28,51,11,45 is 1.

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

• GCF of 45, 11, 93, 44
• GCF of 54, 95, 66, 61
• GCF of 40, 36, 65, 67
• GCF of 17, 69, 59, 76
• GCF of 67, 80, 20, 39

1. What is the GCF of 28, 51, 11, 45?

Answer: GCF of 28, 51, 11, 45 is 1.

2. How to Find the GCF of 28, 51, 11, 45

Answer: Greatest Common Factor(GCF) of 28, 51, 11, 45 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 51, 11, 45) = 1.