Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1434 and 1440 the smallest integer that is 344160 that is divisible by both numbers.
Least Common Multiple (LCM) of 1434 and 1440 is 344160.
LCM(1434,1440) = 344160
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 1434 and 1440. First we will calculate the prime factors of 1434 and 1440.
Prime Factorization of 1434
2 | 1434 |
3 | 717 |
239 | 239 |
1 |
Prime factors of 1434 are 2, 3,239. Prime factorization of 1434 in exponential form is:
1434 = 21×31×2391
Prime Factorization of 1440
2 | 1440 |
2 | 720 |
2 | 360 |
2 | 180 |
2 | 90 |
3 | 45 |
3 | 15 |
5 | 5 |
1 |
Prime factors of 1440 are 2, 3,5. Prime factorization of 1440 in exponential form is:
1440 = 25×32×51
Now multiplying the highest exponent prime factors to calculate the LCM of 1434 and 1440.
LCM(1434,1440) = 25×32×51×2391
LCM(1434,1440) = 344160
Factors of 1434
List of positive integer factors of 1434 that divides 1434 without a remainder.
1, 2, 3, 6, 239, 478, 717, 1434
Factors of 1440
List of positive integer factors of 1440 that divides 1440 without a remainder.
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1434 and 1440, than apply into the LCM equation.
GCF(1434,1440) = 6
LCM(1434,1440) = ( 1434 × 1440) / 6
LCM(1434,1440) = 2064960 / 6
LCM(1434,1440) = 344160
(i) The LCM of 1440 and 1434 is associative
LCM of 1434 and 1440 = LCM of 1440 and 1434
1. What is the LCM of 1434 and 1440?
Answer: LCM of 1434 and 1440 is 344160.
2. What are the Factors of 1434?
Answer: Factors of 1434 are 1, 2, 3, 6, 239, 478, 717, 1434. There are 8 integers that are factors of 1434. The greatest factor of 1434 is 1434.
3. What are the Factors of 1440?
Answer: Factors of 1440 are 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440. There are 36 integers that are factors of 1440. The greatest factor of 1440 is 1440.
4. How to Find the LCM of 1434 and 1440?
Answer:
Least Common Multiple of 1434 and 1440 = 344160
Step 1: Find the prime factorization of 1434
1434 = 2 x 3 x 239
Step 2: Find the prime factorization of 1440
1440 = 2 x 2 x 2 x 2 x 2 x 3 x 3 x 5
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 344160 = 2 x 2 x 2 x 2 x 2 x 3 x 3 x 5 x 239
Step 4: Therefore, the least common multiple of 1434 and 1440 is 344160.