Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1368 and 1369 the smallest integer that is 1872792 that is divisible by both numbers.
Least Common Multiple (LCM) of 1368 and 1369 is 1872792.
LCM(1368,1369) = 1872792
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 1368 and 1369. First we will calculate the prime factors of 1368 and 1369.
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
Prime Factorization of 1369
37 | 1369 |
37 | 37 |
1 |
Prime factors of 1369 are 37. Prime factorization of 1369 in exponential form is:
1369 = 372
Now multiplying the highest exponent prime factors to calculate the LCM of 1368 and 1369.
LCM(1368,1369) = 23×32×191×372
LCM(1368,1369) = 1872792
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
Factors of 1369
List of positive integer factors of 1369 that divides 1369 without a remainder.
1, 37, 1369
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1368 and 1369, than apply into the LCM equation.
GCF(1368,1369) = 1
LCM(1368,1369) = ( 1368 × 1369) / 1
LCM(1368,1369) = 1872792 / 1
LCM(1368,1369) = 1872792
(i) The LCM of 1369 and 1368 is associative
LCM of 1368 and 1369 = LCM of 1369 and 1368
1. What is the LCM of 1368 and 1369?
Answer: LCM of 1368 and 1369 is 1872792.
2. 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.
3. What are the Factors of 1369?
Answer: Factors of 1369 are 1, 37, 1369. There are 3 integers that are factors of 1369. The greatest factor of 1369 is 1369.
4. How to Find the LCM of 1368 and 1369?
Answer:
Least Common Multiple of 1368 and 1369 = 1872792
Step 1: Find the prime factorization of 1368
1368 = 2 x 2 x 2 x 3 x 3 x 19
Step 2: Find the prime factorization of 1369
1369 = 37 x 37
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1872792 = 2 x 2 x 2 x 3 x 3 x 19 x 37 x 37
Step 4: Therefore, the least common multiple of 1368 and 1369 is 1872792.