Greatest Common Factor of 87, 43, 85, 42

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

• Greatest Common Factor of 87, 43, 85, 42 by common division method
• Greatest Common Factor of 87, 43, 85, 42 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 87

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

1,3,29,87

Factors of 43

List of positive integer factors of 43 that divides 43 without a remainder.

1,43

Factors of 85

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

1,5,17,85

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Greatest Common Factor

We found the factors 87,43,85,42 . The biggest common factor number is the GCF number.
So the greatest common factor 87,43,85,42 is 1.

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

• GCF of 97, 69, 70, 10
• GCF of 21, 10, 96, 82
• GCF of 88, 75, 24, 59
• GCF of 79, 85, 30, 34
• GCF of 49, 24, 85, 97

1. What is the GCF of 87, 43, 85, 42?

Answer: GCF of 87, 43, 85, 42 is 1.

2. How to Find the GCF of 87, 43, 85, 42

Answer: Greatest Common Factor(GCF) of 87, 43, 85, 42 = 1

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

Step 2: Then multiply all the prime factors GCF(87, 43, 85, 42) = 1.