Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 189 and 197 the smallest integer that is 37233 that is divisible by both numbers.
Least Common Multiple (LCM) of 189 and 197 is 37233.
LCM(189,197) = 37233
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 189 and 197. First we will calculate the prime factors of 189 and 197.
Prime Factorization of 189
3 | 189 |
3 | 63 |
3 | 21 |
7 | 7 |
1 |
Prime factors of 189 are 3,7. Prime factorization of 189 in exponential form is:
189 = 33×71
Prime Factorization of 197
197 | 197 |
1 |
Prime factors of 197 are 197. Prime factorization of 197 in exponential form is:
197 = 1971
Now multiplying the highest exponent prime factors to calculate the LCM of 189 and 197.
LCM(189,197) = 33×71×1971
LCM(189,197) = 37233
Factors of 189
List of positive integer factors of 189 that divides 189 without a remainder.
1, 3, 7, 9, 21, 27, 63, 189
Factors of 197
List of positive integer factors of 197 that divides 197 without a remainder.
1, 197
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 189 and 197, than apply into the LCM equation.
GCF(189,197) = 1
LCM(189,197) = ( 189 × 197) / 1
LCM(189,197) = 37233 / 1
LCM(189,197) = 37233
(i) The LCM of 197 and 189 is associative
LCM of 189 and 197 = LCM of 197 and 189
1. What is the LCM of 189 and 197?
Answer: LCM of 189 and 197 is 37233.
2. What are the Factors of 189?
Answer: Factors of 189 are 1, 3, 7, 9, 21, 27, 63, 189. There are 8 integers that are factors of 189. The greatest factor of 189 is 189.
3. 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.
4. How to Find the LCM of 189 and 197?
Answer:
Least Common Multiple of 189 and 197 = 37233
Step 1: Find the prime factorization of 189
189 = 3 x 3 x 3 x 7
Step 2: Find the prime factorization of 197
197 = 197
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 37233 = 3 x 3 x 3 x 7 x 197
Step 4: Therefore, the least common multiple of 189 and 197 is 37233.