Greatest Common Factor of 17, 69, 28, 87

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

• Greatest Common Factor of 17, 69, 28, 87 by common division method
• Greatest Common Factor of 17, 69, 28, 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 17

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

1,17

Factors of 69

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

1,3,23,69

Factors of 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

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 17,69,28,87 . The biggest common factor number is the GCF number.
So the greatest common factor 17,69,28,87 is 1.

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

• GCF of 14, 44, 95, 88
• GCF of 83, 10, 75, 43
• GCF of 27, 75, 18, 24
• GCF of 22, 55, 17, 13
• GCF of 59, 15, 17, 38

1. What is the GCF of 17, 69, 28, 87?

Answer: GCF of 17, 69, 28, 87 is 1.

2. How to Find the GCF of 17, 69, 28, 87

Answer: Greatest Common Factor(GCF) of 17, 69, 28, 87 = 1

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

Step 2: Then multiply all the prime factors GCF(17, 69, 28, 87) = 1.