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 190 the smallest integer that is 35910 that is divisible by both numbers.
Least Common Multiple (LCM) of 189 and 190 is 35910.
LCM(189,190) = 35910
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 190. First we will calculate the prime factors of 189 and 190.
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 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
Now multiplying the highest exponent prime factors to calculate the LCM of 189 and 190.
LCM(189,190) = 21×33×51×71×191
LCM(189,190) = 35910
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 190
List of positive integer factors of 190 that divides 190 without a remainder.
1, 2, 5, 10, 19, 38, 95, 190
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 189 and 190, than apply into the LCM equation.
GCF(189,190) = 1
LCM(189,190) = ( 189 × 190) / 1
LCM(189,190) = 35910 / 1
LCM(189,190) = 35910
(i) The LCM of 190 and 189 is associative
LCM of 189 and 190 = LCM of 190 and 189
1. What is the LCM of 189 and 190?
Answer: LCM of 189 and 190 is 35910.
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 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.
4. How to Find the LCM of 189 and 190?
Answer:
Least Common Multiple of 189 and 190 = 35910
Step 1: Find the prime factorization of 189
189 = 3 x 3 x 3 x 7
Step 2: Find the prime factorization of 190
190 = 2 x 5 x 19
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 35910 = 2 x 3 x 3 x 3 x 5 x 7 x 19
Step 4: Therefore, the least common multiple of 189 and 190 is 35910.