Greatest Common Factor of 18, 51, 51, 87

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

• Greatest Common Factor of 18, 51, 51, 87 by common division method
• Greatest Common Factor of 18, 51, 51, 87 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 = 3

Factors of 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Factors of 51

List of positive integer factors of 51 that divides 51 without a remainder.

1,3,17,51

Factors of 51

List of positive integer factors of 51 that divides 51 without a remainder.

1,3,17,51

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 18,51,51,87 . The biggest common factor number is the GCF number.
So the greatest common factor 18,51,51,87 is 3.

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

• GCF of 30, 48, 38, 33
• GCF of 13, 90, 19, 41
• GCF of 97, 11, 12, 60
• GCF of 51, 13, 84, 11
• GCF of 22, 99, 29, 31

1. What is the GCF of 18, 51, 51, 87?

Answer: GCF of 18, 51, 51, 87 is 3.

2. How to Find the GCF of 18, 51, 51, 87

Answer: Greatest Common Factor(GCF) of 18, 51, 51, 87 = 3

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

Step 2: Then multiply all the prime factors GCF(18, 51, 51, 87) = 3.