Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 128 and 134 the smallest integer that is 8576 that is divisible by both numbers.
Least Common Multiple (LCM) of 128 and 134 is 8576.
LCM(128,134) = 8576
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 128 and 134. First we will calculate the prime factors of 128 and 134.
Prime Factorization of 128
2 | 128 |
2 | 64 |
2 | 32 |
2 | 16 |
2 | 8 |
2 | 4 |
2 | 2 |
1 |
Prime factors of 128 are 2. Prime factorization of 128 in exponential form is:
128 = 27
Prime Factorization of 134
2 | 134 |
67 | 67 |
1 |
Prime factors of 134 are 2,67. Prime factorization of 134 in exponential form is:
134 = 21×671
Now multiplying the highest exponent prime factors to calculate the LCM of 128 and 134.
LCM(128,134) = 27×671
LCM(128,134) = 8576
Factors of 128
List of positive integer factors of 128 that divides 128 without a remainder.
1, 2, 4, 8, 16, 32, 64, 128
Factors of 134
List of positive integer factors of 134 that divides 134 without a remainder.
1, 2, 67, 134
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 128 and 134, than apply into the LCM equation.
GCF(128,134) = 2
LCM(128,134) = ( 128 × 134) / 2
LCM(128,134) = 17152 / 2
LCM(128,134) = 8576
(i) The LCM of 134 and 128 is associative
LCM of 128 and 134 = LCM of 134 and 128
1. What is the LCM of 128 and 134?
Answer: LCM of 128 and 134 is 8576.
2. What are the Factors of 128?
Answer: Factors of 128 are 1, 2, 4, 8, 16, 32, 64, 128. There are 8 integers that are factors of 128. The greatest factor of 128 is 128.
3. What are the Factors of 134?
Answer: Factors of 134 are 1, 2, 67, 134. There are 4 integers that are factors of 134. The greatest factor of 134 is 134.
4. How to Find the LCM of 128 and 134?
Answer:
Least Common Multiple of 128 and 134 = 8576
Step 1: Find the prime factorization of 128
128 = 2 x 2 x 2 x 2 x 2 x 2 x 2
Step 2: Find the prime factorization of 134
134 = 2 x 67
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 8576 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 67
Step 4: Therefore, the least common multiple of 128 and 134 is 8576.