Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1388 and 1395 the smallest integer that is 1936260 that is divisible by both numbers.
Least Common Multiple (LCM) of 1388 and 1395 is 1936260.
LCM(1388,1395) = 1936260
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 1388 and 1395. First we will calculate the prime factors of 1388 and 1395.
Prime Factorization of 1388
2 | 1388 |
2 | 694 |
347 | 347 |
1 |
Prime factors of 1388 are 2,347. Prime factorization of 1388 in exponential form is:
1388 = 22×3471
Prime Factorization of 1395
3 | 1395 |
3 | 465 |
5 | 155 |
31 | 31 |
1 |
Prime factors of 1395 are 3, 5,31. Prime factorization of 1395 in exponential form is:
1395 = 32×51×311
Now multiplying the highest exponent prime factors to calculate the LCM of 1388 and 1395.
LCM(1388,1395) = 22×32×51×311×3471
LCM(1388,1395) = 1936260
Factors of 1388
List of positive integer factors of 1388 that divides 1388 without a remainder.
1, 2, 4, 347, 694, 1388
Factors of 1395
List of positive integer factors of 1395 that divides 1395 without a remainder.
1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1388 and 1395, than apply into the LCM equation.
GCF(1388,1395) = 1
LCM(1388,1395) = ( 1388 × 1395) / 1
LCM(1388,1395) = 1936260 / 1
LCM(1388,1395) = 1936260
(i) The LCM of 1395 and 1388 is associative
LCM of 1388 and 1395 = LCM of 1395 and 1388
1. What is the LCM of 1388 and 1395?
Answer: LCM of 1388 and 1395 is 1936260.
2. What are the Factors of 1388?
Answer: Factors of 1388 are 1, 2, 4, 347, 694, 1388. There are 6 integers that are factors of 1388. The greatest factor of 1388 is 1388.
3. What are the Factors of 1395?
Answer: Factors of 1395 are 1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395. There are 12 integers that are factors of 1395. The greatest factor of 1395 is 1395.
4. How to Find the LCM of 1388 and 1395?
Answer:
Least Common Multiple of 1388 and 1395 = 1936260
Step 1: Find the prime factorization of 1388
1388 = 2 x 2 x 347
Step 2: Find the prime factorization of 1395
1395 = 3 x 3 x 5 x 31
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1936260 = 2 x 2 x 3 x 3 x 5 x 31 x 347
Step 4: Therefore, the least common multiple of 1388 and 1395 is 1936260.