Greatest Common Factor of 81, 42, 21, 21, 795

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


GCF of two or more numbers Calculator allows you to quickly calculate the GCF of 81, 42, 21, 21, 795 i.e. 3 largest integer that divides all the numbers equally.

Greatest common factor (GCF) of 81, 42, 21, 21, 795 is 3.

GCF(81, 42, 21, 21, 795) = 3

GCF of 81, 42, 21, 21, 795

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

GCF of:

Greatest Common Factor of 81,42,21,21,795

GCF of 81,42,21,21,795 is 3

3 81, 42, 21, 21, 795
27, 14, 7, 7, 265

∴ So the GCF of the given numbers is 3 = 3

Greatest Common Factor (GCF) By Matching Biggest Common Factor Method

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

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 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 795

List of positive integer factors of 795 that divides 795 without a remainder.

1,3,5,15,53,159,265,795

Greatest Common Factor

We found the factors 81,42,21,21,795 . The biggest common factor number is the GCF number.
So the greatest common factor 81,42,21,21,795 is 3.

GCF of two or more Numbers Calculation Examples

Frequently Asked Questions on GCF of 81, 42, 21, 21, 795

1. What is the GCF of 81, 42, 21, 21, 795?

Answer: GCF of 81, 42, 21, 21, 795 is 3.

2. How to Find the GCF of 81, 42, 21, 21, 795

Answer: Greatest Common Factor(GCF) of 81, 42, 21, 21, 795 = 3

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

Step 2: Then multiply all the prime factors GCF(81, 42, 21, 21, 795) = 3.