Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1340 and 1344 the smallest integer that is 450240 that is divisible by both numbers.
Least Common Multiple (LCM) of 1340 and 1344 is 450240.
LCM(1340,1344) = 450240
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 1340 and 1344. First we will calculate the prime factors of 1340 and 1344.
Prime Factorization of 1340
2 | 1340 |
2 | 670 |
5 | 335 |
67 | 67 |
1 |
Prime factors of 1340 are 2, 5,67. Prime factorization of 1340 in exponential form is:
1340 = 22×51×671
Prime Factorization of 1344
2 | 1344 |
2 | 672 |
2 | 336 |
2 | 168 |
2 | 84 |
2 | 42 |
3 | 21 |
7 | 7 |
1 |
Prime factors of 1344 are 2, 3,7. Prime factorization of 1344 in exponential form is:
1344 = 26×31×71
Now multiplying the highest exponent prime factors to calculate the LCM of 1340 and 1344.
LCM(1340,1344) = 26×31×51×71×671
LCM(1340,1344) = 450240
Factors of 1340
List of positive integer factors of 1340 that divides 1340 without a remainder.
1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340
Factors of 1344
List of positive integer factors of 1344 that divides 1344 without a remainder.
1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 168, 192, 224, 336, 448, 672, 1344
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1340 and 1344, than apply into the LCM equation.
GCF(1340,1344) = 4
LCM(1340,1344) = ( 1340 × 1344) / 4
LCM(1340,1344) = 1800960 / 4
LCM(1340,1344) = 450240
(i) The LCM of 1344 and 1340 is associative
LCM of 1340 and 1344 = LCM of 1344 and 1340
1. What is the LCM of 1340 and 1344?
Answer: LCM of 1340 and 1344 is 450240.
2. What are the Factors of 1340?
Answer: Factors of 1340 are 1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340. There are 12 integers that are factors of 1340. The greatest factor of 1340 is 1340.
3. What are the Factors of 1344?
Answer: Factors of 1344 are 1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 168, 192, 224, 336, 448, 672, 1344. There are 28 integers that are factors of 1344. The greatest factor of 1344 is 1344.
4. How to Find the LCM of 1340 and 1344?
Answer:
Least Common Multiple of 1340 and 1344 = 450240
Step 1: Find the prime factorization of 1340
1340 = 2 x 2 x 5 x 67
Step 2: Find the prime factorization of 1344
1344 = 2 x 2 x 2 x 2 x 2 x 2 x 3 x 7
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 450240 = 2 x 2 x 2 x 2 x 2 x 2 x 3 x 5 x 7 x 67
Step 4: Therefore, the least common multiple of 1340 and 1344 is 450240.