Greatest Common Factor of 28, 85, 73, 87

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

• Greatest Common Factor of 28, 85, 73, 87 by common division method
• Greatest Common Factor of 28, 85, 73, 87 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 85

List of positive integer factors of 85 that divides 85 without a remainder.

1,5,17,85

Factors of 73

List of positive integer factors of 73 that divides 73 without a remainder.

1,73

Factors of 87

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

1,3,29,87

Greatest Common Factor

We found the factors 28,85,73,87 . The biggest common factor number is the GCF number.
So the greatest common factor 28,85,73,87 is 1.

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

• GCF of 90, 68, 67, 17
• GCF of 45, 57, 45, 83
• GCF of 59, 61, 56, 20
• GCF of 29, 12, 39, 93
• GCF of 45, 38, 71, 94

1. What is the GCF of 28, 85, 73, 87?

Answer: GCF of 28, 85, 73, 87 is 1.

2. How to Find the GCF of 28, 85, 73, 87

Answer: Greatest Common Factor(GCF) of 28, 85, 73, 87 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 85, 73, 87) = 1.