Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Make use of GCF Calculator to quickly find the Greatest Common Factor of numbers 721, 725 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 721 and 725 is 1.
GCF(721,725) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 721
7 | 721 |
103 | 103 |
1 |
Prime factors of 721 are 7,103. Prime factorization of 721 in exponential form is:
721 = 71×1031
Prime Factorization of 725
5 | 725 |
5 | 145 |
29 | 29 |
1 |
Prime factors of 725 are 5,29. Prime factorization of 725 in exponential form is:
725 = 52×291
∴ So by taking common prime factors GCF of 721 and 725 is 1
Factors of 721
List of positive integer factors of 721 that divides 721 without a remainder.
1,7,103,721
Factors of 725
List of positive integer factors of 725 that divides 725 without a remainder.
1,5,25,29,145,725
Greatest Common Factor
We found the factors and prime factorization of 721 and 725. The biggest common factor number is the GCF number.
So the greatest common factor 721 and 725 is 1.
Also check out the Least Common Multiple of 721 and 725
(i) The GCF of 721 and 725 is associative
GCF of 721 and 725 = GCF of 725 and 721
1. What is the GCF of 721 and 725?
Answer: GCF of 721 and 725 is 1.
2. What are the Factors of 721?
Answer: Factors of 721 are 1, 7, 103, 721. There are 4 integers that are factors of 721. The greatest factor of 721 is 721.
3. What are the Factors of 725?
Answer: Factors of 725 are 1, 5, 25, 29, 145, 725. There are 6 integers that are factors of 725. The greatest factor of 725 is 725.
4. How to Find the GCF of 721 and 725?
Answer:
Greatest Common Factor of 721 and 725 = 1
Step 1: Find the prime factorization of 721
721 = 7 x 103
Step 2: Find the prime factorization of 725
725 = 5 x 5 x 29
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = = 1
Step 4: Therefore, the greatest common factor of 721 and 725 is 1