Greatest Common Factor of 42, 68, 18

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

• Greatest Common Factor of 42, 68, 18 by common division method
• Greatest Common Factor of 42, 68, 18 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 68

List of positive integer factors of 68 that divides 68 without a remainder.

1,2,4,17,34,68

Factors of 18

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

1,2,3,6,9,18

Greatest Common Factor

We found the factors 42,68,18 . The biggest common factor number is the GCF number.
So the greatest common factor 42,68,18 is 2.

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

• GCF of 61, 23, 28
• GCF of 64, 18, 54
• GCF of 96, 93, 79
• GCF of 41, 41, 15
• GCF of 22, 16, 67

1. What is the GCF of 42, 68, 18?

Answer: GCF of 42, 68, 18 is 2.

2. How to Find the GCF of 42, 68, 18

Answer: Greatest Common Factor(GCF) of 42, 68, 18 = 2

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

Step 2: Then multiply all the prime factors GCF(42, 68, 18) = 2.