Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 191 and 198 the smallest integer that is 37818 that is divisible by both numbers.
Least Common Multiple (LCM) of 191 and 198 is 37818.
LCM(191,198) = 37818
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 191 and 198. First we will calculate the prime factors of 191 and 198.
Prime Factorization of 191
191 | 191 |
1 |
Prime factors of 191 are 191. Prime factorization of 191 in exponential form is:
191 = 1911
Prime Factorization of 198
2 | 198 |
3 | 99 |
3 | 33 |
11 | 11 |
1 |
Prime factors of 198 are 2, 3,11. Prime factorization of 198 in exponential form is:
198 = 21×32×111
Now multiplying the highest exponent prime factors to calculate the LCM of 191 and 198.
LCM(191,198) = 21×32×111×1911
LCM(191,198) = 37818
Factors of 191
List of positive integer factors of 191 that divides 191 without a remainder.
1, 191
Factors of 198
List of positive integer factors of 198 that divides 198 without a remainder.
1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 191 and 198, than apply into the LCM equation.
GCF(191,198) = 1
LCM(191,198) = ( 191 × 198) / 1
LCM(191,198) = 37818 / 1
LCM(191,198) = 37818
(i) The LCM of 198 and 191 is associative
LCM of 191 and 198 = LCM of 198 and 191
1. What is the LCM of 191 and 198?
Answer: LCM of 191 and 198 is 37818.
2. What are the Factors of 191?
Answer: Factors of 191 are 1, 191. There are 2 integers that are factors of 191. The greatest factor of 191 is 191.
3. What are the Factors of 198?
Answer: Factors of 198 are 1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198. There are 12 integers that are factors of 198. The greatest factor of 198 is 198.
4. How to Find the LCM of 191 and 198?
Answer:
Least Common Multiple of 191 and 198 = 37818
Step 1: Find the prime factorization of 191
191 = 191
Step 2: Find the prime factorization of 198
198 = 2 x 3 x 3 x 11
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 37818 = 2 x 3 x 3 x 11 x 191
Step 4: Therefore, the least common multiple of 191 and 198 is 37818.