Greatest Common Factor of 28, 34, 87, 45

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

• Greatest Common Factor of 28, 34, 87, 45 by common division method
• Greatest Common Factor of 28, 34, 87, 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 34

List of positive integer factors of 34 that divides 34 without a remainder.

1,2,17,34

Factors of 87

List of positive integer factors of 87 that divides 87 without a remainder.

1,3,29,87

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 28,34,87,45 . The biggest common factor number is the GCF number.
So the greatest common factor 28,34,87,45 is 1.

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

• GCF of 49, 34, 39, 56
• GCF of 46, 20, 34, 58
• GCF of 37, 96, 17, 50
• GCF of 12, 89, 64, 99
• GCF of 14, 48, 95, 46

1. What is the GCF of 28, 34, 87, 45?

Answer: GCF of 28, 34, 87, 45 is 1.

2. How to Find the GCF of 28, 34, 87, 45

Answer: Greatest Common Factor(GCF) of 28, 34, 87, 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, 34, 87, 45) = 1.