Greatest Common Factor of 42, 64, 87, 85, 10

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

• Greatest Common Factor of 42, 64, 87, 85, 10 by common division method
• Greatest Common Factor of 42, 64, 87, 85, 10 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 42

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

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

Factors of 64

List of positive integer factors of 64 that divides 64 without a remainder.

1,2,4,8,16,32,64

Factors of 87

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

1,3,29,87

Factors of 85

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

1,5,17,85

Factors of 10

List of positive integer factors of 10 that divides 10 without a remainder.

1,2,5,10

Greatest Common Factor

We found the factors 42,64,87,85,10 . The biggest common factor number is the GCF number.
So the greatest common factor 42,64,87,85,10 is 1.

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

• GCF of 99, 81, 16, 92, 24
• GCF of 12, 29, 18, 43, 83
• GCF of 23, 81, 45, 99, 47
• GCF of 98, 81, 32, 88, 70
• GCF of 96, 30, 15, 21, 86

1. What is the GCF of 42, 64, 87, 85, 10?

Answer: GCF of 42, 64, 87, 85, 10 is 1.

2. How to Find the GCF of 42, 64, 87, 85, 10

Answer: Greatest Common Factor(GCF) of 42, 64, 87, 85, 10 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 64, 87, 85, 10) = 1.