Greatest Common Factor of 18, 87, 438

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

• Greatest Common Factor of 18, 87, 438 by common division method
• Greatest Common Factor of 18, 87, 438 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 87

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

1,3,29,87

Factors of 438

List of positive integer factors of 438 that divides 438 without a remainder.

1,2,3,6,73,146,219,438

Greatest Common Factor

We found the factors 18,87,438 . The biggest common factor number is the GCF number.
So the greatest common factor 18,87,438 is 3.

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

• GCF of 73, 69, 782
• GCF of 59, 80, 629
• GCF of 84, 45, 690
• GCF of 47, 14, 750
• GCF of 97, 33, 838

1. What is the GCF of 18, 87, 438?

Answer: GCF of 18, 87, 438 is 3.

2. How to Find the GCF of 18, 87, 438

Answer: Greatest Common Factor(GCF) of 18, 87, 438 = 3

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

Step 2: Then multiply all the prime factors GCF(18, 87, 438) = 3.