Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1378 and 1382 the smallest integer that is 952198 that is divisible by both numbers.
Least Common Multiple (LCM) of 1378 and 1382 is 952198.
LCM(1378,1382) = 952198
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 1378 and 1382. First we will calculate the prime factors of 1378 and 1382.
Prime Factorization of 1378
2 | 1378 |
13 | 689 |
53 | 53 |
1 |
Prime factors of 1378 are 2, 13,53. Prime factorization of 1378 in exponential form is:
1378 = 21×131×531
Prime Factorization of 1382
2 | 1382 |
691 | 691 |
1 |
Prime factors of 1382 are 2,691. Prime factorization of 1382 in exponential form is:
1382 = 21×6911
Now multiplying the highest exponent prime factors to calculate the LCM of 1378 and 1382.
LCM(1378,1382) = 21×131×531×6911
LCM(1378,1382) = 952198
Factors of 1378
List of positive integer factors of 1378 that divides 1378 without a remainder.
1, 2, 13, 26, 53, 106, 689, 1378
Factors of 1382
List of positive integer factors of 1382 that divides 1382 without a remainder.
1, 2, 691, 1382
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1378 and 1382, than apply into the LCM equation.
GCF(1378,1382) = 2
LCM(1378,1382) = ( 1378 × 1382) / 2
LCM(1378,1382) = 1904396 / 2
LCM(1378,1382) = 952198
(i) The LCM of 1382 and 1378 is associative
LCM of 1378 and 1382 = LCM of 1382 and 1378
1. What is the LCM of 1378 and 1382?
Answer: LCM of 1378 and 1382 is 952198.
2. What are the Factors of 1378?
Answer: Factors of 1378 are 1, 2, 13, 26, 53, 106, 689, 1378. There are 8 integers that are factors of 1378. The greatest factor of 1378 is 1378.
3. What are the Factors of 1382?
Answer: Factors of 1382 are 1, 2, 691, 1382. There are 4 integers that are factors of 1382. The greatest factor of 1382 is 1382.
4. How to Find the LCM of 1378 and 1382?
Answer:
Least Common Multiple of 1378 and 1382 = 952198
Step 1: Find the prime factorization of 1378
1378 = 2 x 13 x 53
Step 2: Find the prime factorization of 1382
1382 = 2 x 691
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 952198 = 2 x 13 x 53 x 691
Step 4: Therefore, the least common multiple of 1378 and 1382 is 952198.