Greatest Common Factor of 15, 18, 15, 81
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 15, 18, 15, 81 i.e. 3 largest integer that divides all the numbers equally.
Greatest common factor (GCF) of 15, 18, 15, 81 is 3.
GCF(15, 18, 15, 81) = 3
GCF of 15, 18, 15, 81
Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways
- Greatest Common Factor of 15, 18, 15, 81 by common division method
- Greatest Common Factor of 15, 18, 15, 81 with matching the biggest common factor
GCF of 15,18,15,81 is 3
| 3 | 15, 18, 15, 81 |
| 5, 6, 5, 27 |
∴ So the GCF of the given numbers is 3 = 3
Factors of 15
List of positive integer factors of 15 that divides 15 without a remainder.
1,3,5,15
Factors of 18
List of positive integer factors of 18 that divides 18 without a remainder.
1,2,3,6,9,18
Factors of 15
List of positive integer factors of 15 that divides 15 without a remainder.
1,3,5,15
Factors of 81
List of positive integer factors of 81 that divides 81 without a remainder.
1,3,9,27,81
Greatest Common Factor
We found the factors 15,18,15,81 . The biggest common factor number is the GCF number.
So the greatest common factor 15,18,15,81 is 3.
GCF of two or more Numbers Calculation Examples
Here are some samples of GCF of two or more Numbers calculations.
Frequently Asked Questions on GCF of 15, 18, 15, 81
1. What is the GCF of 15, 18, 15, 81?
Answer: GCF of 15, 18, 15, 81 is 3.
2. How to Find the GCF of 15, 18, 15, 81
Answer: Greatest Common Factor(GCF) of 15, 18, 15, 81 = 3
Step 1: Divide all the numbers with common prime numbers having remainder zero.
Step 2: Then multiply all the prime factors GCF(15, 18, 15, 81) = 3.