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 1725, 1728 i.e. 3 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1725 and 1728 is 3.
GCF(1725,1728) = 3
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1725
3 | 1725 |
5 | 575 |
5 | 115 |
23 | 23 |
1 |
Prime factors of 1725 are 3,5,23. Prime factorization of 1725 in exponential form is:
1725 = 31×52×231
Prime Factorization of 1728
2 | 1728 |
2 | 864 |
2 | 432 |
2 | 216 |
2 | 108 |
2 | 54 |
3 | 27 |
3 | 9 |
3 | 3 |
1 |
Prime factors of 1728 are 2,3. Prime factorization of 1728 in exponential form is:
1728 = 26×33
∴ So by taking common prime factors GCF of 1725 and 1728 is 3
Factors of 1725
List of positive integer factors of 1725 that divides 1725 without a remainder.
1,3,5,15,23,25,69,75,115,345,575,1725
Factors of 1728
List of positive integer factors of 1728 that divides 1728 without a remainder.
1,2,3,4,6,8,9,12,16,18,24,27,32,36,48,54,64,72,96,108,144,192,216,288,432,576,864,1728
Greatest Common Factor
We found the factors and prime factorization of 1725 and 1728. The biggest common factor number is the GCF number.
So the greatest common factor 1725 and 1728 is 3.
Also check out the Least Common Multiple of 1725 and 1728
(i) The GCF of 1725 and 1728 is associative
GCF of 1725 and 1728 = GCF of 1728 and 1725
1. What is the GCF of 1725 and 1728?
Answer: GCF of 1725 and 1728 is 3.
2. What are the Factors of 1725?
Answer: Factors of 1725 are 1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 575, 1725. There are 12 integers that are factors of 1725. The greatest factor of 1725 is 1725.
3. What are the Factors of 1728?
Answer: Factors of 1728 are 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 96, 108, 144, 192, 216, 288, 432, 576, 864, 1728. There are 28 integers that are factors of 1728. The greatest factor of 1728 is 1728.
4. How to Find the GCF of 1725 and 1728?
Answer:
Greatest Common Factor of 1725 and 1728 = 3
Step 1: Find the prime factorization of 1725
1725 = 3 x 5 x 5 x 23
Step 2: Find the prime factorization of 1728
1728 = 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 3
Step 4: Therefore, the greatest common factor of 1725 and 1728 is 3