Greatest Common Factor of 18, 15, 342

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

• Greatest Common Factor of 18, 15, 342 by common division method
• Greatest Common Factor of 18, 15, 342 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 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Factors of 342

List of positive integer factors of 342 that divides 342 without a remainder.

1,2,3,6,9,18,19,38,57,114,171,342

Greatest Common Factor

We found the factors 18,15,342 . The biggest common factor number is the GCF number.
So the greatest common factor 18,15,342 is 3.

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

• GCF of 77, 94, 232
• GCF of 48, 71, 960
• GCF of 96, 31, 478
• GCF of 53, 77, 313
• GCF of 67, 81, 860

1. What is the GCF of 18, 15, 342?

Answer: GCF of 18, 15, 342 is 3.

2. How to Find the GCF of 18, 15, 342

Answer: Greatest Common Factor(GCF) of 18, 15, 342 = 3

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

Step 2: Then multiply all the prime factors GCF(18, 15, 342) = 3.