Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1435 and 1440 the smallest integer that is 413280 that is divisible by both numbers.
Least Common Multiple (LCM) of 1435 and 1440 is 413280.
LCM(1435,1440) = 413280
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 1435 and 1440. First we will calculate the prime factors of 1435 and 1440.
Prime Factorization of 1435
5 | 1435 |
7 | 287 |
41 | 41 |
1 |
Prime factors of 1435 are 5, 7,41. Prime factorization of 1435 in exponential form is:
1435 = 51×71×411
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 1435 and 1440.
LCM(1435,1440) = 25×32×51×71×411
LCM(1435,1440) = 413280
Factors of 1435
List of positive integer factors of 1435 that divides 1435 without a remainder.
1, 5, 7, 35, 41, 205, 287, 1435
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 1435 and 1440, than apply into the LCM equation.
GCF(1435,1440) = 5
LCM(1435,1440) = ( 1435 × 1440) / 5
LCM(1435,1440) = 2066400 / 5
LCM(1435,1440) = 413280
(i) The LCM of 1440 and 1435 is associative
LCM of 1435 and 1440 = LCM of 1440 and 1435
1. What is the LCM of 1435 and 1440?
Answer: LCM of 1435 and 1440 is 413280.
2. What are the Factors of 1435?
Answer: Factors of 1435 are 1, 5, 7, 35, 41, 205, 287, 1435. There are 8 integers that are factors of 1435. The greatest factor of 1435 is 1435.
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 1435 and 1440?
Answer:
Least Common Multiple of 1435 and 1440 = 413280
Step 1: Find the prime factorization of 1435
1435 = 5 x 7 x 41
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 = 413280 = 2 x 2 x 2 x 2 x 2 x 3 x 3 x 5 x 7 x 41
Step 4: Therefore, the least common multiple of 1435 and 1440 is 413280.