Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 6555 and 6561 the smallest integer that is 14335785 that is divisible by both numbers.
Least Common Multiple (LCM) of 6555 and 6561 is 14335785.
LCM(6555,6561) = 14335785
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 6555 and 6561. First we will calculate the prime factors of 6555 and 6561.
Prime Factorization of 6555
3 | 6555 |
5 | 2185 |
19 | 437 |
23 | 23 |
1 |
Prime factors of 6555 are 3, 5, 19,23. Prime factorization of 6555 in exponential form is:
6555 = 31×51×191×231
Prime Factorization of 6561
3 | 6561 |
3 | 2187 |
3 | 729 |
3 | 243 |
3 | 81 |
3 | 27 |
3 | 9 |
3 | 3 |
1 |
Prime factors of 6561 are 3. Prime factorization of 6561 in exponential form is:
6561 = 38
Now multiplying the highest exponent prime factors to calculate the LCM of 6555 and 6561.
LCM(6555,6561) = 38×51×191×231
LCM(6555,6561) = 14335785
Factors of 6555
List of positive integer factors of 6555 that divides 6555 without a remainder.
1, 3, 5, 15, 19, 23, 57, 69, 95, 115, 285, 345, 437, 1311, 2185, 6555
Factors of 6561
List of positive integer factors of 6561 that divides 6561 without a remainder.
1, 3, 9, 27, 81, 243, 729, 2187, 6561
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6555 and 6561, than apply into the LCM equation.
GCF(6555,6561) = 3
LCM(6555,6561) = ( 6555 × 6561) / 3
LCM(6555,6561) = 43007355 / 3
LCM(6555,6561) = 14335785
(i) The LCM of 6561 and 6555 is associative
LCM of 6555 and 6561 = LCM of 6561 and 6555
1. What is the LCM of 6555 and 6561?
Answer: LCM of 6555 and 6561 is 14335785.
2. What are the Factors of 6555?
Answer: Factors of 6555 are 1, 3, 5, 15, 19, 23, 57, 69, 95, 115, 285, 345, 437, 1311, 2185, 6555. There are 16 integers that are factors of 6555. The greatest factor of 6555 is 6555.
3. What are the Factors of 6561?
Answer: Factors of 6561 are 1, 3, 9, 27, 81, 243, 729, 2187, 6561. There are 9 integers that are factors of 6561. The greatest factor of 6561 is 6561.
4. How to Find the LCM of 6555 and 6561?
Answer:
Least Common Multiple of 6555 and 6561 = 14335785
Step 1: Find the prime factorization of 6555
6555 = 3 x 5 x 19 x 23
Step 2: Find the prime factorization of 6561
6561 = 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 14335785 = 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 5 x 19 x 23
Step 4: Therefore, the least common multiple of 6555 and 6561 is 14335785.