Greatest Common Factor of 42, 20, 166

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

• Greatest Common Factor of 42, 20, 166 by common division method
• Greatest Common Factor of 42, 20, 166 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ So the GCF of the given numbers is 2 = 2

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 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 166

List of positive integer factors of 166 that divides 166 without a remainder.

1,2,83,166

Greatest Common Factor

We found the factors 42,20,166 . The biggest common factor number is the GCF number.
So the greatest common factor 42,20,166 is 2.

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

• GCF of 52, 30, 965
• GCF of 46, 12, 542
• GCF of 59, 43, 826
• GCF of 69, 82, 227
• GCF of 56, 38, 282

1. What is the GCF of 42, 20, 166?

Answer: GCF of 42, 20, 166 is 2.

2. How to Find the GCF of 42, 20, 166

Answer: Greatest Common Factor(GCF) of 42, 20, 166 = 2

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

Step 2: Then multiply all the prime factors GCF(42, 20, 166) = 2.