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 122 the smallest integer that is 14274 that is divisible by both numbers.
Least Common Multiple (LCM) of 117 and 122 is 14274.
LCM(117,122) = 14274
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 122. First we will calculate the prime factors of 117 and 122.
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 122
2 | 122 |
61 | 61 |
1 |
Prime factors of 122 are 2,61. Prime factorization of 122 in exponential form is:
122 = 21×611
Now multiplying the highest exponent prime factors to calculate the LCM of 117 and 122.
LCM(117,122) = 21×32×131×611
LCM(117,122) = 14274
Factors of 117
List of positive integer factors of 117 that divides 117 without a remainder.
1, 3, 9, 13, 39, 117
Factors of 122
List of positive integer factors of 122 that divides 122 without a remainder.
1, 2, 61, 122
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 117 and 122, than apply into the LCM equation.
GCF(117,122) = 1
LCM(117,122) = ( 117 × 122) / 1
LCM(117,122) = 14274 / 1
LCM(117,122) = 14274
(i) The LCM of 122 and 117 is associative
LCM of 117 and 122 = LCM of 122 and 117
1. What is the LCM of 117 and 122?
Answer: LCM of 117 and 122 is 14274.
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 122?
Answer: Factors of 122 are 1, 2, 61, 122. There are 4 integers that are factors of 122. The greatest factor of 122 is 122.
4. How to Find the LCM of 117 and 122?
Answer:
Least Common Multiple of 117 and 122 = 14274
Step 1: Find the prime factorization of 117
117 = 3 x 3 x 13
Step 2: Find the prime factorization of 122
122 = 2 x 61
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 14274 = 2 x 3 x 3 x 13 x 61
Step 4: Therefore, the least common multiple of 117 and 122 is 14274.