Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 136 and 142 the smallest integer that is 9656 that is divisible by both numbers.
Least Common Multiple (LCM) of 136 and 142 is 9656.
LCM(136,142) = 9656
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 136 and 142. First we will calculate the prime factors of 136 and 142.
Prime Factorization of 136
2 | 136 |
2 | 68 |
2 | 34 |
17 | 17 |
1 |
Prime factors of 136 are 2,17. Prime factorization of 136 in exponential form is:
136 = 23×171
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 136 and 142.
LCM(136,142) = 23×171×711
LCM(136,142) = 9656
Factors of 136
List of positive integer factors of 136 that divides 136 without a remainder.
1, 2, 4, 8, 17, 34, 68, 136
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 136 and 142, than apply into the LCM equation.
GCF(136,142) = 2
LCM(136,142) = ( 136 × 142) / 2
LCM(136,142) = 19312 / 2
LCM(136,142) = 9656
(i) The LCM of 142 and 136 is associative
LCM of 136 and 142 = LCM of 142 and 136
1. What is the LCM of 136 and 142?
Answer: LCM of 136 and 142 is 9656.
2. What are the Factors of 136?
Answer: Factors of 136 are 1, 2, 4, 8, 17, 34, 68, 136. There are 8 integers that are factors of 136. The greatest factor of 136 is 136.
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 136 and 142?
Answer:
Least Common Multiple of 136 and 142 = 9656
Step 1: Find the prime factorization of 136
136 = 2 x 2 x 2 x 17
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 = 9656 = 2 x 2 x 2 x 17 x 71
Step 4: Therefore, the least common multiple of 136 and 142 is 9656.