Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1204 and 1209 the smallest integer that is 1455636 that is divisible by both numbers.
Least Common Multiple (LCM) of 1204 and 1209 is 1455636.
LCM(1204,1209) = 1455636
Least common multiple or lowest common denominator (LCD) can be calculated in three ways;
Least common multiple can be found by multiplying the highest exponent prime factors of 1204 and 1209. First we will calculate the prime factors of 1204 and 1209.
Prime Factorization of 1204
2 | 1204 |
2 | 602 |
7 | 301 |
43 | 43 |
1 |
Prime factors of 1204 are 2, 7,43. Prime factorization of 1204 in exponential form is:
1204 = 22×71×431
Prime Factorization of 1209
3 | 1209 |
13 | 403 |
31 | 31 |
1 |
Prime factors of 1209 are 3, 13,31. Prime factorization of 1209 in exponential form is:
1209 = 31×131×311
Now multiplying the highest exponent prime factors to calculate the LCM of 1204 and 1209.
LCM(1204,1209) = 22×31×71×131×311×431
LCM(1204,1209) = 1455636
Factors of 1204
List of positive integer factors of 1204 that divides 1204 without a remainder.
1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204
Factors of 1209
List of positive integer factors of 1209 that divides 1209 without a remainder.
1, 3, 13, 31, 39, 93, 403, 1209
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1204 and 1209, than apply into the LCM equation.
GCF(1204,1209) = 1
LCM(1204,1209) = ( 1204 × 1209) / 1
LCM(1204,1209) = 1455636 / 1
LCM(1204,1209) = 1455636
(i) The LCM of 1209 and 1204 is associative
LCM of 1204 and 1209 = LCM of 1209 and 1204
1. What is the LCM of 1204 and 1209?
Answer: LCM of 1204 and 1209 is 1455636.
2. What are the Factors of 1204?
Answer: Factors of 1204 are 1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204. There are 12 integers that are factors of 1204. The greatest factor of 1204 is 1204.
3. What are the Factors of 1209?
Answer: Factors of 1209 are 1, 3, 13, 31, 39, 93, 403, 1209. There are 8 integers that are factors of 1209. The greatest factor of 1209 is 1209.
4. How to Find the LCM of 1204 and 1209?
Answer:
Least Common Multiple of 1204 and 1209 = 1455636
Step 1: Find the prime factorization of 1204
1204 = 2 x 2 x 7 x 43
Step 2: Find the prime factorization of 1209
1209 = 3 x 13 x 31
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1455636 = 2 x 2 x 3 x 7 x 13 x 31 x 43
Step 4: Therefore, the least common multiple of 1204 and 1209 is 1455636.