Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 382 and 388 the smallest integer that is 74108 that is divisible by both numbers.
Least Common Multiple (LCM) of 382 and 388 is 74108.
LCM(382,388) = 74108
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 382 and 388. First we will calculate the prime factors of 382 and 388.
Prime Factorization of 382
2 | 382 |
191 | 191 |
1 |
Prime factors of 382 are 2,191. Prime factorization of 382 in exponential form is:
382 = 21×1911
Prime Factorization of 388
2 | 388 |
2 | 194 |
97 | 97 |
1 |
Prime factors of 388 are 2,97. Prime factorization of 388 in exponential form is:
388 = 22×971
Now multiplying the highest exponent prime factors to calculate the LCM of 382 and 388.
LCM(382,388) = 22×971×1911
LCM(382,388) = 74108
Factors of 382
List of positive integer factors of 382 that divides 382 without a remainder.
1, 2, 191, 382
Factors of 388
List of positive integer factors of 388 that divides 388 without a remainder.
1, 2, 4, 97, 194, 388
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 382 and 388, than apply into the LCM equation.
GCF(382,388) = 2
LCM(382,388) = ( 382 × 388) / 2
LCM(382,388) = 148216 / 2
LCM(382,388) = 74108
(i) The LCM of 388 and 382 is associative
LCM of 382 and 388 = LCM of 388 and 382
1. What is the LCM of 382 and 388?
Answer: LCM of 382 and 388 is 74108.
2. What are the Factors of 382?
Answer: Factors of 382 are 1, 2, 191, 382. There are 4 integers that are factors of 382. The greatest factor of 382 is 382.
3. What are the Factors of 388?
Answer: Factors of 388 are 1, 2, 4, 97, 194, 388. There are 6 integers that are factors of 388. The greatest factor of 388 is 388.
4. How to Find the LCM of 382 and 388?
Answer:
Least Common Multiple of 382 and 388 = 74108
Step 1: Find the prime factorization of 382
382 = 2 x 191
Step 2: Find the prime factorization of 388
388 = 2 x 2 x 97
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 74108 = 2 x 2 x 97 x 191
Step 4: Therefore, the least common multiple of 382 and 388 is 74108.