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 121 the smallest integer that is 14157 that is divisible by both numbers.
Least Common Multiple (LCM) of 117 and 121 is 14157.
LCM(117,121) = 14157
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 121. First we will calculate the prime factors of 117 and 121.
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 121
11 | 121 |
11 | 11 |
1 |
Prime factors of 121 are 11. Prime factorization of 121 in exponential form is:
121 = 112
Now multiplying the highest exponent prime factors to calculate the LCM of 117 and 121.
LCM(117,121) = 32×112×131
LCM(117,121) = 14157
Factors of 117
List of positive integer factors of 117 that divides 117 without a remainder.
1, 3, 9, 13, 39, 117
Factors of 121
List of positive integer factors of 121 that divides 121 without a remainder.
1, 11, 121
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 117 and 121, than apply into the LCM equation.
GCF(117,121) = 1
LCM(117,121) = ( 117 × 121) / 1
LCM(117,121) = 14157 / 1
LCM(117,121) = 14157
(i) The LCM of 121 and 117 is associative
LCM of 117 and 121 = LCM of 121 and 117
1. What is the LCM of 117 and 121?
Answer: LCM of 117 and 121 is 14157.
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 121?
Answer: Factors of 121 are 1, 11, 121. There are 3 integers that are factors of 121. The greatest factor of 121 is 121.
4. How to Find the LCM of 117 and 121?
Answer:
Least Common Multiple of 117 and 121 = 14157
Step 1: Find the prime factorization of 117
117 = 3 x 3 x 13
Step 2: Find the prime factorization of 121
121 = 11 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 = 14157 = 3 x 3 x 11 x 11 x 13
Step 4: Therefore, the least common multiple of 117 and 121 is 14157.