Greatest Common Factor of 42, 27, 39, 51

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

• Greatest Common Factor of 42, 27, 39, 51 by common division method
• Greatest Common Factor of 42, 27, 39, 51 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ 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 27

List of positive integer factors of 27 that divides 27 without a remainder.

1,3,9,27

Factors of 39

List of positive integer factors of 39 that divides 39 without a remainder.

1,3,13,39

Factors of 51

List of positive integer factors of 51 that divides 51 without a remainder.

1,3,17,51

Greatest Common Factor

We found the factors 42,27,39,51 . The biggest common factor number is the GCF number.
So the greatest common factor 42,27,39,51 is 3.

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

• GCF of 89, 15, 73, 73
• GCF of 83, 44, 73, 96
• GCF of 48, 86, 53, 79
• GCF of 53, 73, 44, 57
• GCF of 21, 84, 53, 16

1. What is the GCF of 42, 27, 39, 51?

Answer: GCF of 42, 27, 39, 51 is 3.

2. How to Find the GCF of 42, 27, 39, 51

Answer: Greatest Common Factor(GCF) of 42, 27, 39, 51 = 3

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

Step 2: Then multiply all the prime factors GCF(42, 27, 39, 51) = 3.