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 203 the smallest integer that is 39991 that is divisible by both numbers.
Least Common Multiple (LCM) of 197 and 203 is 39991.
LCM(197,203) = 39991
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 203. First we will calculate the prime factors of 197 and 203.
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 203
7 | 203 |
29 | 29 |
1 |
Prime factors of 203 are 7,29. Prime factorization of 203 in exponential form is:
203 = 71×291
Now multiplying the highest exponent prime factors to calculate the LCM of 197 and 203.
LCM(197,203) = 71×291×1971
LCM(197,203) = 39991
Factors of 197
List of positive integer factors of 197 that divides 197 without a remainder.
1, 197
Factors of 203
List of positive integer factors of 203 that divides 203 without a remainder.
1, 7, 29, 203
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 197 and 203, than apply into the LCM equation.
GCF(197,203) = 1
LCM(197,203) = ( 197 × 203) / 1
LCM(197,203) = 39991 / 1
LCM(197,203) = 39991
(i) The LCM of 203 and 197 is associative
LCM of 197 and 203 = LCM of 203 and 197
1. What is the LCM of 197 and 203?
Answer: LCM of 197 and 203 is 39991.
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 203?
Answer: Factors of 203 are 1, 7, 29, 203. There are 4 integers that are factors of 203. The greatest factor of 203 is 203.
4. How to Find the LCM of 197 and 203?
Answer:
Least Common Multiple of 197 and 203 = 39991
Step 1: Find the prime factorization of 197
197 = 197
Step 2: Find the prime factorization of 203
203 = 7 x 29
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 39991 = 7 x 29 x 197
Step 4: Therefore, the least common multiple of 197 and 203 is 39991.