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 21, 23, 505 i.e. 1 largest integer that divides all the numbers equally.
Greatest common factor (GCF) of 21, 23, 505 is 1.
GCF(21, 23, 505) = 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 21
List of positive integer factors of 21 that divides 21 without a remainder.
1,3,7,21
Factors of 23
List of positive integer factors of 23 that divides 23 without a remainder.
1,23
Factors of 505
List of positive integer factors of 505 that divides 505 without a remainder.
1,5,101,505
Greatest Common Factor
We found the factors 21,23,505 . The biggest common factor number is the GCF number.
So the greatest common factor 21,23,505 is 1.
Here are some samples of GCF of two or more Numbers calculations.
1. What is the GCF of 21, 23, 505?
Answer: GCF of 21, 23, 505 is 1.
2. How to Find the GCF of 21, 23, 505
Answer: Greatest Common Factor(GCF) of 21, 23, 505 = 1
Step 1: Divide all the numbers with common prime numbers having remainder zero.
Step 2: Then multiply all the prime factors GCF(21, 23, 505) = 1.