Greatest Common Factor of 42, 18, 789

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

• Greatest Common Factor of 42, 18, 789 by common division method
• Greatest Common Factor of 42, 18, 789 with matching the biggest common factor

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

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 18

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

1,2,3,6,9,18

Factors of 789

List of positive integer factors of 789 that divides 789 without a remainder.

1,3,263,789

Greatest Common Factor

We found the factors 42,18,789 . The biggest common factor number is the GCF number.
So the greatest common factor 42,18,789 is 3.

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

• GCF of 60, 48, 365
• GCF of 15, 23, 665
• GCF of 37, 59, 316
• GCF of 51, 30, 508
• GCF of 64, 25, 139

1. What is the GCF of 42, 18, 789?

Answer: GCF of 42, 18, 789 is 3.

2. How to Find the GCF of 42, 18, 789

Answer: Greatest Common Factor(GCF) of 42, 18, 789 = 3

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

Step 2: Then multiply all the prime factors GCF(42, 18, 789) = 3.