Greatest Common Factor of 42, 840, 789

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

• Greatest Common Factor of 42, 840, 789 by common division method
• Greatest Common Factor of 42, 840, 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 840

List of positive integer factors of 840 that divides 840 without a remainder.

1,2,3,4,5,6,7,8,10,12,14,15,20,21,24,28,30,35,40,42,56,60,70,84,105,120,140,168,210,280,420,840

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 42,840,789 . The biggest common factor number is the GCF number.
So the greatest common factor 42,840,789 is 3.

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

• GCF of 89, 597, 982
• GCF of 49, 690, 159
• GCF of 94, 874, 779
• GCF of 77, 749, 158
• GCF of 52, 186, 951

1. What is the GCF of 42, 840, 789?

Answer: GCF of 42, 840, 789 is 3.

2. How to Find the GCF of 42, 840, 789

Answer: Greatest Common Factor(GCF) of 42, 840, 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, 840, 789) = 3.