Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 6639 and 6645 the smallest integer that is 14705385 that is divisible by both numbers.
Least Common Multiple (LCM) of 6639 and 6645 is 14705385.
LCM(6639,6645) = 14705385
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 6639 and 6645. First we will calculate the prime factors of 6639 and 6645.
Prime Factorization of 6639
3 | 6639 |
2213 | 2213 |
1 |
Prime factors of 6639 are 3,2213. Prime factorization of 6639 in exponential form is:
6639 = 31×22131
Prime Factorization of 6645
3 | 6645 |
5 | 2215 |
443 | 443 |
1 |
Prime factors of 6645 are 3, 5,443. Prime factorization of 6645 in exponential form is:
6645 = 31×51×4431
Now multiplying the highest exponent prime factors to calculate the LCM of 6639 and 6645.
LCM(6639,6645) = 31×51×4431×22131
LCM(6639,6645) = 14705385
Factors of 6639
List of positive integer factors of 6639 that divides 6639 without a remainder.
1, 3, 2213, 6639
Factors of 6645
List of positive integer factors of 6645 that divides 6645 without a remainder.
1, 3, 5, 15, 443, 1329, 2215, 6645
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6639 and 6645, than apply into the LCM equation.
GCF(6639,6645) = 3
LCM(6639,6645) = ( 6639 × 6645) / 3
LCM(6639,6645) = 44116155 / 3
LCM(6639,6645) = 14705385
(i) The LCM of 6645 and 6639 is associative
LCM of 6639 and 6645 = LCM of 6645 and 6639
1. What is the LCM of 6639 and 6645?
Answer: LCM of 6639 and 6645 is 14705385.
2. What are the Factors of 6639?
Answer: Factors of 6639 are 1, 3, 2213, 6639. There are 4 integers that are factors of 6639. The greatest factor of 6639 is 6639.
3. What are the Factors of 6645?
Answer: Factors of 6645 are 1, 3, 5, 15, 443, 1329, 2215, 6645. There are 8 integers that are factors of 6645. The greatest factor of 6645 is 6645.
4. How to Find the LCM of 6639 and 6645?
Answer:
Least Common Multiple of 6639 and 6645 = 14705385
Step 1: Find the prime factorization of 6639
6639 = 3 x 2213
Step 2: Find the prime factorization of 6645
6645 = 3 x 5 x 443
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 14705385 = 3 x 5 x 443 x 2213
Step 4: Therefore, the least common multiple of 6639 and 6645 is 14705385.