Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1207 and 1215 the smallest integer that is 1466505 that is divisible by both numbers.
Least Common Multiple (LCM) of 1207 and 1215 is 1466505.
LCM(1207,1215) = 1466505
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 1207 and 1215. First we will calculate the prime factors of 1207 and 1215.
Prime Factorization of 1207
17 | 1207 |
71 | 71 |
1 |
Prime factors of 1207 are 17,71. Prime factorization of 1207 in exponential form is:
1207 = 171×711
Prime Factorization of 1215
3 | 1215 |
3 | 405 |
3 | 135 |
3 | 45 |
3 | 15 |
5 | 5 |
1 |
Prime factors of 1215 are 3,5. Prime factorization of 1215 in exponential form is:
1215 = 35×51
Now multiplying the highest exponent prime factors to calculate the LCM of 1207 and 1215.
LCM(1207,1215) = 35×51×171×711
LCM(1207,1215) = 1466505
Factors of 1207
List of positive integer factors of 1207 that divides 1207 without a remainder.
1, 17, 71, 1207
Factors of 1215
List of positive integer factors of 1215 that divides 1215 without a remainder.
1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1207 and 1215, than apply into the LCM equation.
GCF(1207,1215) = 1
LCM(1207,1215) = ( 1207 × 1215) / 1
LCM(1207,1215) = 1466505 / 1
LCM(1207,1215) = 1466505
(i) The LCM of 1215 and 1207 is associative
LCM of 1207 and 1215 = LCM of 1215 and 1207
1. What is the LCM of 1207 and 1215?
Answer: LCM of 1207 and 1215 is 1466505.
2. What are the Factors of 1207?
Answer: Factors of 1207 are 1, 17, 71, 1207. There are 4 integers that are factors of 1207. The greatest factor of 1207 is 1207.
3. What are the Factors of 1215?
Answer: Factors of 1215 are 1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215. There are 12 integers that are factors of 1215. The greatest factor of 1215 is 1215.
4. How to Find the LCM of 1207 and 1215?
Answer:
Least Common Multiple of 1207 and 1215 = 1466505
Step 1: Find the prime factorization of 1207
1207 = 17 x 71
Step 2: Find the prime factorization of 1215
1215 = 3 x 3 x 3 x 3 x 3 x 5
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1466505 = 3 x 3 x 3 x 3 x 3 x 5 x 17 x 71
Step 4: Therefore, the least common multiple of 1207 and 1215 is 1466505.