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 12240, 12245 i.e. 5 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 12240 and 12245 is 5.
GCF(12240,12245) = 5
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 12240
2 | 12240 |
2 | 6120 |
2 | 3060 |
2 | 1530 |
3 | 765 |
3 | 255 |
5 | 85 |
17 | 17 |
1 |
Prime factors of 12240 are 2,3,5,17. Prime factorization of 12240 in exponential form is:
12240 = 24×32×51×171
Prime Factorization of 12245
5 | 12245 |
31 | 2449 |
79 | 79 |
1 |
Prime factors of 12245 are 5,31,79. Prime factorization of 12245 in exponential form is:
12245 = 51×311×791
∴ So by taking common prime factors GCF of 12240 and 12245 is 5
Factors of 12240
List of positive integer factors of 12240 that divides 12240 without a remainder.
1,2,3,4,5,6,8,9,10,12,15,16,17,18,20,24,30,34,36,40,45,48,51,60,68,72,80,85,90,102,120,136,144,153,170,180,204,240,255,272,306,340,360,408,510,612,680,720,765,816,1020,1224,1360,1530,2040,2448,3060,4080,6120,12240
Factors of 12245
List of positive integer factors of 12245 that divides 12245 without a remainder.
1,5,31,79,155,395,2449,12245
Greatest Common Factor
We found the factors and prime factorization of 12240 and 12245. The biggest common factor number is the GCF number.
So the greatest common factor 12240 and 12245 is 5.
Also check out the Least Common Multiple of 12240 and 12245
(i) The GCF of 12240 and 12245 is associative
GCF of 12240 and 12245 = GCF of 12245 and 12240
1. What is the GCF of 12240 and 12245?
Answer: GCF of 12240 and 12245 is 5.
2. What are the Factors of 12240?
Answer: Factors of 12240 are 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 34, 36, 40, 45, 48, 51, 60, 68, 72, 80, 85, 90, 102, 120, 136, 144, 153, 170, 180, 204, 240, 255, 272, 306, 340, 360, 408, 510, 612, 680, 720, 765, 816, 1020, 1224, 1360, 1530, 2040, 2448, 3060, 4080, 6120, 12240. There are 60 integers that are factors of 12240. The greatest factor of 12240 is 12240.
3. What are the Factors of 12245?
Answer: Factors of 12245 are 1, 5, 31, 79, 155, 395, 2449, 12245. There are 8 integers that are factors of 12245. The greatest factor of 12245 is 12245.
4. How to Find the GCF of 12240 and 12245?
Answer:
Greatest Common Factor of 12240 and 12245 = 5
Step 1: Find the prime factorization of 12240
12240 = 2 x 2 x 2 x 2 x 3 x 3 x 5 x 17
Step 2: Find the prime factorization of 12245
12245 = 5 x 31 x 79
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 5
Step 4: Therefore, the greatest common factor of 12240 and 12245 is 5