Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1505 and 1508 the smallest integer that is 2269540 that is divisible by both numbers.
Least Common Multiple (LCM) of 1505 and 1508 is 2269540.
LCM(1505,1508) = 2269540
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 1505 and 1508. First we will calculate the prime factors of 1505 and 1508.
Prime Factorization of 1505
5 | 1505 |
7 | 301 |
43 | 43 |
1 |
Prime factors of 1505 are 5, 7,43. Prime factorization of 1505 in exponential form is:
1505 = 51×71×431
Prime Factorization of 1508
2 | 1508 |
2 | 754 |
13 | 377 |
29 | 29 |
1 |
Prime factors of 1508 are 2, 13,29. Prime factorization of 1508 in exponential form is:
1508 = 22×131×291
Now multiplying the highest exponent prime factors to calculate the LCM of 1505 and 1508.
LCM(1505,1508) = 22×51×71×131×291×431
LCM(1505,1508) = 2269540
Factors of 1505
List of positive integer factors of 1505 that divides 1505 without a remainder.
1, 5, 7, 35, 43, 215, 301, 1505
Factors of 1508
List of positive integer factors of 1508 that divides 1508 without a remainder.
1, 2, 4, 13, 26, 29, 52, 58, 116, 377, 754, 1508
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1505 and 1508, than apply into the LCM equation.
GCF(1505,1508) = 1
LCM(1505,1508) = ( 1505 × 1508) / 1
LCM(1505,1508) = 2269540 / 1
LCM(1505,1508) = 2269540
(i) The LCM of 1508 and 1505 is associative
LCM of 1505 and 1508 = LCM of 1508 and 1505
1. What is the LCM of 1505 and 1508?
Answer: LCM of 1505 and 1508 is 2269540.
2. What are the Factors of 1505?
Answer: Factors of 1505 are 1, 5, 7, 35, 43, 215, 301, 1505. There are 8 integers that are factors of 1505. The greatest factor of 1505 is 1505.
3. What are the Factors of 1508?
Answer: Factors of 1508 are 1, 2, 4, 13, 26, 29, 52, 58, 116, 377, 754, 1508. There are 12 integers that are factors of 1508. The greatest factor of 1508 is 1508.
4. How to Find the LCM of 1505 and 1508?
Answer:
Least Common Multiple of 1505 and 1508 = 2269540
Step 1: Find the prime factorization of 1505
1505 = 5 x 7 x 43
Step 2: Find the prime factorization of 1508
1508 = 2 x 2 x 13 x 29
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 2269540 = 2 x 2 x 5 x 7 x 13 x 29 x 43
Step 4: Therefore, the least common multiple of 1505 and 1508 is 2269540.