Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 381 and 383 the smallest integer that is 145923 that is divisible by both numbers.
Least Common Multiple (LCM) of 381 and 383 is 145923.
LCM(381,383) = 145923
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 381 and 383. First we will calculate the prime factors of 381 and 383.
Prime Factorization of 381
3 | 381 |
127 | 127 |
1 |
Prime factors of 381 are 3,127. Prime factorization of 381 in exponential form is:
381 = 31×1271
Prime Factorization of 383
383 | 383 |
1 |
Prime factors of 383 are 383. Prime factorization of 383 in exponential form is:
383 = 3831
Now multiplying the highest exponent prime factors to calculate the LCM of 381 and 383.
LCM(381,383) = 31×1271×3831
LCM(381,383) = 145923
Factors of 381
List of positive integer factors of 381 that divides 381 without a remainder.
1, 3, 127, 381
Factors of 383
List of positive integer factors of 383 that divides 383 without a remainder.
1, 383
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 381 and 383, than apply into the LCM equation.
GCF(381,383) = 1
LCM(381,383) = ( 381 × 383) / 1
LCM(381,383) = 145923 / 1
LCM(381,383) = 145923
(i) The LCM of 383 and 381 is associative
LCM of 381 and 383 = LCM of 383 and 381
1. What is the LCM of 381 and 383?
Answer: LCM of 381 and 383 is 145923.
2. What are the Factors of 381?
Answer: Factors of 381 are 1, 3, 127, 381. There are 4 integers that are factors of 381. The greatest factor of 381 is 381.
3. What are the Factors of 383?
Answer: Factors of 383 are 1, 383. There are 2 integers that are factors of 383. The greatest factor of 383 is 383.
4. How to Find the LCM of 381 and 383?
Answer:
Least Common Multiple of 381 and 383 = 145923
Step 1: Find the prime factorization of 381
381 = 3 x 127
Step 2: Find the prime factorization of 383
383 = 383
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 145923 = 3 x 127 x 383
Step 4: Therefore, the least common multiple of 381 and 383 is 145923.