Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1205 and 1211 the smallest integer that is 1459255 that is divisible by both numbers.
Least Common Multiple (LCM) of 1205 and 1211 is 1459255.
LCM(1205,1211) = 1459255
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 1205 and 1211. First we will calculate the prime factors of 1205 and 1211.
Prime Factorization of 1205
5 | 1205 |
241 | 241 |
1 |
Prime factors of 1205 are 5,241. Prime factorization of 1205 in exponential form is:
1205 = 51×2411
Prime Factorization of 1211
7 | 1211 |
173 | 173 |
1 |
Prime factors of 1211 are 7,173. Prime factorization of 1211 in exponential form is:
1211 = 71×1731
Now multiplying the highest exponent prime factors to calculate the LCM of 1205 and 1211.
LCM(1205,1211) = 51×71×1731×2411
LCM(1205,1211) = 1459255
Factors of 1205
List of positive integer factors of 1205 that divides 1205 without a remainder.
1, 5, 241, 1205
Factors of 1211
List of positive integer factors of 1211 that divides 1211 without a remainder.
1, 7, 173, 1211
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1205 and 1211, than apply into the LCM equation.
GCF(1205,1211) = 1
LCM(1205,1211) = ( 1205 × 1211) / 1
LCM(1205,1211) = 1459255 / 1
LCM(1205,1211) = 1459255
(i) The LCM of 1211 and 1205 is associative
LCM of 1205 and 1211 = LCM of 1211 and 1205
1. What is the LCM of 1205 and 1211?
Answer: LCM of 1205 and 1211 is 1459255.
2. What are the Factors of 1205?
Answer: Factors of 1205 are 1, 5, 241, 1205. There are 4 integers that are factors of 1205. The greatest factor of 1205 is 1205.
3. What are the Factors of 1211?
Answer: Factors of 1211 are 1, 7, 173, 1211. There are 4 integers that are factors of 1211. The greatest factor of 1211 is 1211.
4. How to Find the LCM of 1205 and 1211?
Answer:
Least Common Multiple of 1205 and 1211 = 1459255
Step 1: Find the prime factorization of 1205
1205 = 5 x 241
Step 2: Find the prime factorization of 1211
1211 = 7 x 173
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1459255 = 5 x 7 x 173 x 241
Step 4: Therefore, the least common multiple of 1205 and 1211 is 1459255.