Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 207 and 209 the smallest integer that is 43263 that is divisible by both numbers.
Least Common Multiple (LCM) of 207 and 209 is 43263.
LCM(207,209) = 43263
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 207 and 209. First we will calculate the prime factors of 207 and 209.
Prime Factorization of 207
3 | 207 |
3 | 69 |
23 | 23 |
1 |
Prime factors of 207 are 3,23. Prime factorization of 207 in exponential form is:
207 = 32×231
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
Now multiplying the highest exponent prime factors to calculate the LCM of 207 and 209.
LCM(207,209) = 32×111×191×231
LCM(207,209) = 43263
Factors of 207
List of positive integer factors of 207 that divides 207 without a remainder.
1, 3, 9, 23, 69, 207
Factors of 209
List of positive integer factors of 209 that divides 209 without a remainder.
1, 11, 19, 209
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 207 and 209, than apply into the LCM equation.
GCF(207,209) = 1
LCM(207,209) = ( 207 × 209) / 1
LCM(207,209) = 43263 / 1
LCM(207,209) = 43263
(i) The LCM of 209 and 207 is associative
LCM of 207 and 209 = LCM of 209 and 207
1. What is the LCM of 207 and 209?
Answer: LCM of 207 and 209 is 43263.
2. What are the Factors of 207?
Answer: Factors of 207 are 1, 3, 9, 23, 69, 207. There are 6 integers that are factors of 207. The greatest factor of 207 is 207.
3. 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.
4. How to Find the LCM of 207 and 209?
Answer:
Least Common Multiple of 207 and 209 = 43263
Step 1: Find the prime factorization of 207
207 = 3 x 3 x 23
Step 2: Find the prime factorization of 209
209 = 11 x 19
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 43263 = 3 x 3 x 11 x 19 x 23
Step 4: Therefore, the least common multiple of 207 and 209 is 43263.