Greatest Common Factor of 80, 69, 87, 17, 64

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

• Greatest Common Factor of 80, 69, 87, 17, 64 by common division method
• Greatest Common Factor of 80, 69, 87, 17, 64 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 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

Factors of 69

List of positive integer factors of 69 that divides 69 without a remainder.

1,3,23,69

Factors of 87

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

1,3,29,87

Factors of 17

List of positive integer factors of 17 that divides 17 without a remainder.

1,17

Factors of 64

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

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

Greatest Common Factor

We found the factors 80,69,87,17,64 . The biggest common factor number is the GCF number.
So the greatest common factor 80,69,87,17,64 is 1.

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

• GCF of 10, 42, 49, 62, 29
• GCF of 34, 23, 47, 66, 83
• GCF of 94, 55, 45, 83, 10
• GCF of 71, 26, 89, 33, 47
• GCF of 73, 74, 83, 13, 49

1. What is the GCF of 80, 69, 87, 17, 64?

Answer: GCF of 80, 69, 87, 17, 64 is 1.

2. How to Find the GCF of 80, 69, 87, 17, 64

Answer: Greatest Common Factor(GCF) of 80, 69, 87, 17, 64 = 1

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

Step 2: Then multiply all the prime factors GCF(80, 69, 87, 17, 64) = 1.