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 1545, 1548 i.e. 3 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1545 and 1548 is 3.
GCF(1545,1548) = 3
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1545
3 | 1545 |
5 | 515 |
103 | 103 |
1 |
Prime factors of 1545 are 3,5,103. Prime factorization of 1545 in exponential form is:
1545 = 31×51×1031
Prime Factorization of 1548
2 | 1548 |
2 | 774 |
3 | 387 |
3 | 129 |
43 | 43 |
1 |
Prime factors of 1548 are 2,3,43. Prime factorization of 1548 in exponential form is:
1548 = 22×32×431
∴ So by taking common prime factors GCF of 1545 and 1548 is 3
Factors of 1545
List of positive integer factors of 1545 that divides 1545 without a remainder.
1,3,5,15,103,309,515,1545
Factors of 1548
List of positive integer factors of 1548 that divides 1548 without a remainder.
1,2,3,4,6,9,12,18,36,43,86,129,172,258,387,516,774,1548
Greatest Common Factor
We found the factors and prime factorization of 1545 and 1548. The biggest common factor number is the GCF number.
So the greatest common factor 1545 and 1548 is 3.
Also check out the Least Common Multiple of 1545 and 1548
(i) The GCF of 1545 and 1548 is associative
GCF of 1545 and 1548 = GCF of 1548 and 1545
1. What is the GCF of 1545 and 1548?
Answer: GCF of 1545 and 1548 is 3.
2. What are the Factors of 1545?
Answer: Factors of 1545 are 1, 3, 5, 15, 103, 309, 515, 1545. There are 8 integers that are factors of 1545. The greatest factor of 1545 is 1545.
3. What are the Factors of 1548?
Answer: Factors of 1548 are 1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548. There are 18 integers that are factors of 1548. The greatest factor of 1548 is 1548.
4. How to Find the GCF of 1545 and 1548?
Answer:
Greatest Common Factor of 1545 and 1548 = 3
Step 1: Find the prime factorization of 1545
1545 = 3 x 5 x 103
Step 2: Find the prime factorization of 1548
1548 = 2 x 2 x 3 x 3 x 43
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 1545 and 1548 is 3