Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 126 and 132 the smallest integer that is 2772 that is divisible by both numbers.
Least Common Multiple (LCM) of 126 and 132 is 2772.
LCM(126,132) = 2772
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 126 and 132. First we will calculate the prime factors of 126 and 132.
Prime Factorization of 126
2 | 126 |
3 | 63 |
3 | 21 |
7 | 7 |
1 |
Prime factors of 126 are 2, 3,7. Prime factorization of 126 in exponential form is:
126 = 21×32×71
Prime Factorization of 132
2 | 132 |
2 | 66 |
3 | 33 |
11 | 11 |
1 |
Prime factors of 132 are 2, 3,11. Prime factorization of 132 in exponential form is:
132 = 22×31×111
Now multiplying the highest exponent prime factors to calculate the LCM of 126 and 132.
LCM(126,132) = 22×32×71×111
LCM(126,132) = 2772
Factors of 126
List of positive integer factors of 126 that divides 126 without a remainder.
1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126
Factors of 132
List of positive integer factors of 132 that divides 132 without a remainder.
1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 126 and 132, than apply into the LCM equation.
GCF(126,132) = 6
LCM(126,132) = ( 126 × 132) / 6
LCM(126,132) = 16632 / 6
LCM(126,132) = 2772
(i) The LCM of 132 and 126 is associative
LCM of 126 and 132 = LCM of 132 and 126
1. What is the LCM of 126 and 132?
Answer: LCM of 126 and 132 is 2772.
2. What are the Factors of 126?
Answer: Factors of 126 are 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126. There are 12 integers that are factors of 126. The greatest factor of 126 is 126.
3. What are the Factors of 132?
Answer: Factors of 132 are 1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132. There are 12 integers that are factors of 132. The greatest factor of 132 is 132.
4. How to Find the LCM of 126 and 132?
Answer:
Least Common Multiple of 126 and 132 = 2772
Step 1: Find the prime factorization of 126
126 = 2 x 3 x 3 x 7
Step 2: Find the prime factorization of 132
132 = 2 x 2 x 3 x 11
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 2772 = 2 x 2 x 3 x 3 x 7 x 11
Step 4: Therefore, the least common multiple of 126 and 132 is 2772.