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 205 the smallest integer that is 40385 that is divisible by both numbers.
Least Common Multiple (LCM) of 197 and 205 is 40385.
LCM(197,205) = 40385
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 205. First we will calculate the prime factors of 197 and 205.
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 205
5 | 205 |
41 | 41 |
1 |
Prime factors of 205 are 5,41. Prime factorization of 205 in exponential form is:
205 = 51×411
Now multiplying the highest exponent prime factors to calculate the LCM of 197 and 205.
LCM(197,205) = 51×411×1971
LCM(197,205) = 40385
Factors of 197
List of positive integer factors of 197 that divides 197 without a remainder.
1, 197
Factors of 205
List of positive integer factors of 205 that divides 205 without a remainder.
1, 5, 41, 205
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 197 and 205, than apply into the LCM equation.
GCF(197,205) = 1
LCM(197,205) = ( 197 × 205) / 1
LCM(197,205) = 40385 / 1
LCM(197,205) = 40385
(i) The LCM of 205 and 197 is associative
LCM of 197 and 205 = LCM of 205 and 197
1. What is the LCM of 197 and 205?
Answer: LCM of 197 and 205 is 40385.
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 205?
Answer: Factors of 205 are 1, 5, 41, 205. There are 4 integers that are factors of 205. The greatest factor of 205 is 205.
4. How to Find the LCM of 197 and 205?
Answer:
Least Common Multiple of 197 and 205 = 40385
Step 1: Find the prime factorization of 197
197 = 197
Step 2: Find the prime factorization of 205
205 = 5 x 41
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 40385 = 5 x 41 x 197
Step 4: Therefore, the least common multiple of 197 and 205 is 40385.