Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 197 and 198 the smallest integer that is 39006 that is divisible by both numbers.
Least Common Multiple (LCM) of 197 and 198 is 39006.
LCM(197,198) = 39006
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 197 and 198. First we will calculate the prime factors of 197 and 198.
Prime Factorization of 197
197 | 197 |
1 |
Prime factors of 197 are 197. Prime factorization of 197 in exponential form is:
197 = 1971
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 197 and 198.
LCM(197,198) = 21×32×111×1971
LCM(197,198) = 39006
Factors of 197
List of positive integer factors of 197 that divides 197 without a remainder.
1, 197
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 197 and 198, than apply into the LCM equation.
GCF(197,198) = 1
LCM(197,198) = ( 197 × 198) / 1
LCM(197,198) = 39006 / 1
LCM(197,198) = 39006
(i) The LCM of 198 and 197 is associative
LCM of 197 and 198 = LCM of 198 and 197
1. What is the LCM of 197 and 198?
Answer: LCM of 197 and 198 is 39006.
2. What are the Factors of 197?
Answer: Factors of 197 are 1, 197. There are 2 integers that are factors of 197. The greatest factor of 197 is 197.
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 197 and 198?
Answer:
Least Common Multiple of 197 and 198 = 39006
Step 1: Find the prime factorization of 197
197 = 197
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 = 39006 = 2 x 3 x 3 x 11 x 197
Step 4: Therefore, the least common multiple of 197 and 198 is 39006.