Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 135 and 142 the smallest integer that is 19170 that is divisible by both numbers.
Least Common Multiple (LCM) of 135 and 142 is 19170.
LCM(135,142) = 19170
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 135 and 142. First we will calculate the prime factors of 135 and 142.
Prime Factorization of 135
3 | 135 |
3 | 45 |
3 | 15 |
5 | 5 |
1 |
Prime factors of 135 are 3,5. Prime factorization of 135 in exponential form is:
135 = 33×51
Prime Factorization of 142
2 | 142 |
71 | 71 |
1 |
Prime factors of 142 are 2,71. Prime factorization of 142 in exponential form is:
142 = 21×711
Now multiplying the highest exponent prime factors to calculate the LCM of 135 and 142.
LCM(135,142) = 21×33×51×711
LCM(135,142) = 19170
Factors of 135
List of positive integer factors of 135 that divides 135 without a remainder.
1, 3, 5, 9, 15, 27, 45, 135
Factors of 142
List of positive integer factors of 142 that divides 142 without a remainder.
1, 2, 71, 142
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 135 and 142, than apply into the LCM equation.
GCF(135,142) = 1
LCM(135,142) = ( 135 × 142) / 1
LCM(135,142) = 19170 / 1
LCM(135,142) = 19170
(i) The LCM of 142 and 135 is associative
LCM of 135 and 142 = LCM of 142 and 135
1. What is the LCM of 135 and 142?
Answer: LCM of 135 and 142 is 19170.
2. What are the Factors of 135?
Answer: Factors of 135 are 1, 3, 5, 9, 15, 27, 45, 135. There are 8 integers that are factors of 135. The greatest factor of 135 is 135.
3. What are the Factors of 142?
Answer: Factors of 142 are 1, 2, 71, 142. There are 4 integers that are factors of 142. The greatest factor of 142 is 142.
4. How to Find the LCM of 135 and 142?
Answer:
Least Common Multiple of 135 and 142 = 19170
Step 1: Find the prime factorization of 135
135 = 3 x 3 x 3 x 5
Step 2: Find the prime factorization of 142
142 = 2 x 71
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 19170 = 2 x 3 x 3 x 3 x 5 x 71
Step 4: Therefore, the least common multiple of 135 and 142 is 19170.