Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 15405 and 15411 the smallest integer that is 79135485 that is divisible by both numbers.
Least Common Multiple (LCM) of 15405 and 15411 is 79135485.
LCM(15405,15411) = 79135485
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 15405 and 15411. First we will calculate the prime factors of 15405 and 15411.
Prime Factorization of 15405
3 | 15405 |
5 | 5135 |
13 | 1027 |
79 | 79 |
1 |
Prime factors of 15405 are 3, 5, 13,79. Prime factorization of 15405 in exponential form is:
15405 = 31×51×131×791
Prime Factorization of 15411
3 | 15411 |
11 | 5137 |
467 | 467 |
1 |
Prime factors of 15411 are 3, 11,467. Prime factorization of 15411 in exponential form is:
15411 = 31×111×4671
Now multiplying the highest exponent prime factors to calculate the LCM of 15405 and 15411.
LCM(15405,15411) = 31×51×111×131×791×4671
LCM(15405,15411) = 79135485
Factors of 15405
List of positive integer factors of 15405 that divides 15405 without a remainder.
1, 3, 5, 13, 15, 39, 65, 79, 195, 237, 395, 1027, 1185, 3081, 5135, 15405
Factors of 15411
List of positive integer factors of 15411 that divides 15411 without a remainder.
1, 3, 11, 33, 467, 1401, 5137, 15411
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15405 and 15411, than apply into the LCM equation.
GCF(15405,15411) = 3
LCM(15405,15411) = ( 15405 × 15411) / 3
LCM(15405,15411) = 237406455 / 3
LCM(15405,15411) = 79135485
(i) The LCM of 15411 and 15405 is associative
LCM of 15405 and 15411 = LCM of 15411 and 15405
1. What is the LCM of 15405 and 15411?
Answer: LCM of 15405 and 15411 is 79135485.
2. What are the Factors of 15405?
Answer: Factors of 15405 are 1, 3, 5, 13, 15, 39, 65, 79, 195, 237, 395, 1027, 1185, 3081, 5135, 15405. There are 16 integers that are factors of 15405. The greatest factor of 15405 is 15405.
3. What are the Factors of 15411?
Answer: Factors of 15411 are 1, 3, 11, 33, 467, 1401, 5137, 15411. There are 8 integers that are factors of 15411. The greatest factor of 15411 is 15411.
4. How to Find the LCM of 15405 and 15411?
Answer:
Least Common Multiple of 15405 and 15411 = 79135485
Step 1: Find the prime factorization of 15405
15405 = 3 x 5 x 13 x 79
Step 2: Find the prime factorization of 15411
15411 = 3 x 11 x 467
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 79135485 = 3 x 5 x 11 x 13 x 79 x 467
Step 4: Therefore, the least common multiple of 15405 and 15411 is 79135485.