Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 209 and 215 the smallest integer that is 44935 that is divisible by both numbers.
Least Common Multiple (LCM) of 209 and 215 is 44935.
LCM(209,215) = 44935
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 209 and 215. First we will calculate the prime factors of 209 and 215.
Prime Factorization of 209
11 | 209 |
19 | 19 |
1 |
Prime factors of 209 are 11,19. Prime factorization of 209 in exponential form is:
209 = 111×191
Prime Factorization of 215
5 | 215 |
43 | 43 |
1 |
Prime factors of 215 are 5,43. Prime factorization of 215 in exponential form is:
215 = 51×431
Now multiplying the highest exponent prime factors to calculate the LCM of 209 and 215.
LCM(209,215) = 51×111×191×431
LCM(209,215) = 44935
Factors of 209
List of positive integer factors of 209 that divides 209 without a remainder.
1, 11, 19, 209
Factors of 215
List of positive integer factors of 215 that divides 215 without a remainder.
1, 5, 43, 215
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 209 and 215, than apply into the LCM equation.
GCF(209,215) = 1
LCM(209,215) = ( 209 × 215) / 1
LCM(209,215) = 44935 / 1
LCM(209,215) = 44935
(i) The LCM of 215 and 209 is associative
LCM of 209 and 215 = LCM of 215 and 209
1. What is the LCM of 209 and 215?
Answer: LCM of 209 and 215 is 44935.
2. What are the Factors of 209?
Answer: Factors of 209 are 1, 11, 19, 209. There are 4 integers that are factors of 209. The greatest factor of 209 is 209.
3. What are the Factors of 215?
Answer: Factors of 215 are 1, 5, 43, 215. There are 4 integers that are factors of 215. The greatest factor of 215 is 215.
4. How to Find the LCM of 209 and 215?
Answer:
Least Common Multiple of 209 and 215 = 44935
Step 1: Find the prime factorization of 209
209 = 11 x 19
Step 2: Find the prime factorization of 215
215 = 5 x 43
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 44935 = 5 x 11 x 19 x 43
Step 4: Therefore, the least common multiple of 209 and 215 is 44935.