Greatest Common Factor of 42, 210, 120

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

• Greatest Common Factor of 42, 210, 120 by common division method
• Greatest Common Factor of 42, 210, 120 with matching the biggest common factor

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∴ So the GCF of the given numbers is 2 x 3 = 6

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 210

List of positive integer factors of 210 that divides 210 without a remainder.

1,2,3,5,6,7,10,14,15,21,30,35,42,70,105,210

Factors of 120

List of positive integer factors of 120 that divides 120 without a remainder.

1,2,3,4,5,6,8,10,12,15,20,24,30,40,60,120

Greatest Common Factor

We found the factors 42,210,120 . The biggest common factor number is the GCF number.
So the greatest common factor 42,210,120 is 6.

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

• GCF of 37, 447, 684
• GCF of 67, 568, 713
• GCF of 22, 560, 584
• GCF of 88, 191, 271
• GCF of 36, 220, 743

1. What is the GCF of 42, 210, 120?

Answer: GCF of 42, 210, 120 is 6.

2. How to Find the GCF of 42, 210, 120

Answer: Greatest Common Factor(GCF) of 42, 210, 120 = 6

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

Step 2: Then multiply all the prime factors GCF(42, 210, 120) = 6.