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 28, 65, 390 i.e. 1 largest integer that divides all the numbers equally.
Greatest common factor (GCF) of 28, 65, 390 is 1.
GCF(28, 65, 390) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways
∴ GCF of numbers is 1 because of no common factors present between them.
Factors of 28
List of positive integer factors of 28 that divides 28 without a remainder.
1,2,4,7,14,28
Factors of 65
List of positive integer factors of 65 that divides 65 without a remainder.
1,5,13,65
Factors of 390
List of positive integer factors of 390 that divides 390 without a remainder.
1,2,3,5,6,10,13,15,26,30,39,65,78,130,195,390
Greatest Common Factor
We found the factors 28,65,390 . The biggest common factor number is the GCF number.
So the greatest common factor 28,65,390 is 1.
Here are some samples of GCF of two or more Numbers calculations.
1. What is the GCF of 28, 65, 390?
Answer: GCF of 28, 65, 390 is 1.
2. How to Find the GCF of 28, 65, 390
Answer: Greatest Common Factor(GCF) of 28, 65, 390 = 1
Step 1: Divide all the numbers with common prime numbers having remainder zero.
Step 2: Then multiply all the prime factors GCF(28, 65, 390) = 1.