Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1365 and 1368 the smallest integer that is 622440 that is divisible by both numbers.
Least Common Multiple (LCM) of 1365 and 1368 is 622440.
LCM(1365,1368) = 622440
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 1365 and 1368. First we will calculate the prime factors of 1365 and 1368.
Prime Factorization of 1365
3 | 1365 |
5 | 455 |
7 | 91 |
13 | 13 |
1 |
Prime factors of 1365 are 3, 5, 7,13. Prime factorization of 1365 in exponential form is:
1365 = 31×51×71×131
Prime Factorization of 1368
2 | 1368 |
2 | 684 |
2 | 342 |
3 | 171 |
3 | 57 |
19 | 19 |
1 |
Prime factors of 1368 are 2, 3,19. Prime factorization of 1368 in exponential form is:
1368 = 23×32×191
Now multiplying the highest exponent prime factors to calculate the LCM of 1365 and 1368.
LCM(1365,1368) = 23×32×51×71×131×191
LCM(1365,1368) = 622440
Factors of 1365
List of positive integer factors of 1365 that divides 1365 without a remainder.
1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365
Factors of 1368
List of positive integer factors of 1368 that divides 1368 without a remainder.
1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 456, 684, 1368
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1365 and 1368, than apply into the LCM equation.
GCF(1365,1368) = 3
LCM(1365,1368) = ( 1365 × 1368) / 3
LCM(1365,1368) = 1867320 / 3
LCM(1365,1368) = 622440
(i) The LCM of 1368 and 1365 is associative
LCM of 1365 and 1368 = LCM of 1368 and 1365
1. What is the LCM of 1365 and 1368?
Answer: LCM of 1365 and 1368 is 622440.
2. What are the Factors of 1365?
Answer: Factors of 1365 are 1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365. There are 16 integers that are factors of 1365. The greatest factor of 1365 is 1365.
3. What are the Factors of 1368?
Answer: Factors of 1368 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 456, 684, 1368. There are 24 integers that are factors of 1368. The greatest factor of 1368 is 1368.
4. How to Find the LCM of 1365 and 1368?
Answer:
Least Common Multiple of 1365 and 1368 = 622440
Step 1: Find the prime factorization of 1365
1365 = 3 x 5 x 7 x 13
Step 2: Find the prime factorization of 1368
1368 = 2 x 2 x 2 x 3 x 3 x 19
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 622440 = 2 x 2 x 2 x 3 x 3 x 5 x 7 x 13 x 19
Step 4: Therefore, the least common multiple of 1365 and 1368 is 622440.