Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 117 and 118 the smallest integer that is 13806 that is divisible by both numbers.
Least Common Multiple (LCM) of 117 and 118 is 13806.
LCM(117,118) = 13806
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 117 and 118. First we will calculate the prime factors of 117 and 118.
Prime Factorization of 117
3 | 117 |
3 | 39 |
13 | 13 |
1 |
Prime factors of 117 are 3,13. Prime factorization of 117 in exponential form is:
117 = 32×131
Prime Factorization of 118
2 | 118 |
59 | 59 |
1 |
Prime factors of 118 are 2,59. Prime factorization of 118 in exponential form is:
118 = 21×591
Now multiplying the highest exponent prime factors to calculate the LCM of 117 and 118.
LCM(117,118) = 21×32×131×591
LCM(117,118) = 13806
Factors of 117
List of positive integer factors of 117 that divides 117 without a remainder.
1, 3, 9, 13, 39, 117
Factors of 118
List of positive integer factors of 118 that divides 118 without a remainder.
1, 2, 59, 118
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 117 and 118, than apply into the LCM equation.
GCF(117,118) = 1
LCM(117,118) = ( 117 × 118) / 1
LCM(117,118) = 13806 / 1
LCM(117,118) = 13806
(i) The LCM of 118 and 117 is associative
LCM of 117 and 118 = LCM of 118 and 117
1. What is the LCM of 117 and 118?
Answer: LCM of 117 and 118 is 13806.
2. What are the Factors of 117?
Answer: Factors of 117 are 1, 3, 9, 13, 39, 117. There are 6 integers that are factors of 117. The greatest factor of 117 is 117.
3. What are the Factors of 118?
Answer: Factors of 118 are 1, 2, 59, 118. There are 4 integers that are factors of 118. The greatest factor of 118 is 118.
4. How to Find the LCM of 117 and 118?
Answer:
Least Common Multiple of 117 and 118 = 13806
Step 1: Find the prime factorization of 117
117 = 3 x 3 x 13
Step 2: Find the prime factorization of 118
118 = 2 x 59
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 13806 = 2 x 3 x 3 x 13 x 59
Step 4: Therefore, the least common multiple of 117 and 118 is 13806.