Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 190 and 198 the smallest integer that is 18810 that is divisible by both numbers.
Least Common Multiple (LCM) of 190 and 198 is 18810.
LCM(190,198) = 18810
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 190 and 198. First we will calculate the prime factors of 190 and 198.
Prime Factorization of 190
2 | 190 |
5 | 95 |
19 | 19 |
1 |
Prime factors of 190 are 2, 5,19. Prime factorization of 190 in exponential form is:
190 = 21×51×191
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 190 and 198.
LCM(190,198) = 21×32×51×111×191
LCM(190,198) = 18810
Factors of 190
List of positive integer factors of 190 that divides 190 without a remainder.
1, 2, 5, 10, 19, 38, 95, 190
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 190 and 198, than apply into the LCM equation.
GCF(190,198) = 2
LCM(190,198) = ( 190 × 198) / 2
LCM(190,198) = 37620 / 2
LCM(190,198) = 18810
(i) The LCM of 198 and 190 is associative
LCM of 190 and 198 = LCM of 198 and 190
1. What is the LCM of 190 and 198?
Answer: LCM of 190 and 198 is 18810.
2. What are the Factors of 190?
Answer: Factors of 190 are 1, 2, 5, 10, 19, 38, 95, 190. There are 8 integers that are factors of 190. The greatest factor of 190 is 190.
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 190 and 198?
Answer:
Least Common Multiple of 190 and 198 = 18810
Step 1: Find the prime factorization of 190
190 = 2 x 5 x 19
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 = 18810 = 2 x 3 x 3 x 5 x 11 x 19
Step 4: Therefore, the least common multiple of 190 and 198 is 18810.