Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 186 and 189 the smallest integer that is 11718 that is divisible by both numbers.
Least Common Multiple (LCM) of 186 and 189 is 11718.
LCM(186,189) = 11718
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 186 and 189. First we will calculate the prime factors of 186 and 189.
Prime Factorization of 186
2 | 186 |
3 | 93 |
31 | 31 |
1 |
Prime factors of 186 are 2, 3,31. Prime factorization of 186 in exponential form is:
186 = 21×31×311
Prime Factorization of 189
3 | 189 |
3 | 63 |
3 | 21 |
7 | 7 |
1 |
Prime factors of 189 are 3,7. Prime factorization of 189 in exponential form is:
189 = 33×71
Now multiplying the highest exponent prime factors to calculate the LCM of 186 and 189.
LCM(186,189) = 21×33×71×311
LCM(186,189) = 11718
Factors of 186
List of positive integer factors of 186 that divides 186 without a remainder.
1, 2, 3, 6, 31, 62, 93, 186
Factors of 189
List of positive integer factors of 189 that divides 189 without a remainder.
1, 3, 7, 9, 21, 27, 63, 189
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 186 and 189, than apply into the LCM equation.
GCF(186,189) = 3
LCM(186,189) = ( 186 × 189) / 3
LCM(186,189) = 35154 / 3
LCM(186,189) = 11718
(i) The LCM of 189 and 186 is associative
LCM of 186 and 189 = LCM of 189 and 186
1. What is the LCM of 186 and 189?
Answer: LCM of 186 and 189 is 11718.
2. What are the Factors of 186?
Answer: Factors of 186 are 1, 2, 3, 6, 31, 62, 93, 186. There are 8 integers that are factors of 186. The greatest factor of 186 is 186.
3. What are the Factors of 189?
Answer: Factors of 189 are 1, 3, 7, 9, 21, 27, 63, 189. There are 8 integers that are factors of 189. The greatest factor of 189 is 189.
4. How to Find the LCM of 186 and 189?
Answer:
Least Common Multiple of 186 and 189 = 11718
Step 1: Find the prime factorization of 186
186 = 2 x 3 x 31
Step 2: Find the prime factorization of 189
189 = 3 x 3 x 3 x 7
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 11718 = 2 x 3 x 3 x 3 x 7 x 31
Step 4: Therefore, the least common multiple of 186 and 189 is 11718.