Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 6443 and 6447 the smallest integer that is 41538021 that is divisible by both numbers.
Least Common Multiple (LCM) of 6443 and 6447 is 41538021.
LCM(6443,6447) = 41538021
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 6443 and 6447. First we will calculate the prime factors of 6443 and 6447.
Prime Factorization of 6443
17 | 6443 |
379 | 379 |
1 |
Prime factors of 6443 are 17,379. Prime factorization of 6443 in exponential form is:
6443 = 171×3791
Prime Factorization of 6447
3 | 6447 |
7 | 2149 |
307 | 307 |
1 |
Prime factors of 6447 are 3, 7,307. Prime factorization of 6447 in exponential form is:
6447 = 31×71×3071
Now multiplying the highest exponent prime factors to calculate the LCM of 6443 and 6447.
LCM(6443,6447) = 31×71×171×3071×3791
LCM(6443,6447) = 41538021
Factors of 6443
List of positive integer factors of 6443 that divides 6443 without a remainder.
1, 17, 379, 6443
Factors of 6447
List of positive integer factors of 6447 that divides 6447 without a remainder.
1, 3, 7, 21, 307, 921, 2149, 6447
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6443 and 6447, than apply into the LCM equation.
GCF(6443,6447) = 1
LCM(6443,6447) = ( 6443 × 6447) / 1
LCM(6443,6447) = 41538021 / 1
LCM(6443,6447) = 41538021
(i) The LCM of 6447 and 6443 is associative
LCM of 6443 and 6447 = LCM of 6447 and 6443
1. What is the LCM of 6443 and 6447?
Answer: LCM of 6443 and 6447 is 41538021.
2. What are the Factors of 6443?
Answer: Factors of 6443 are 1, 17, 379, 6443. There are 4 integers that are factors of 6443. The greatest factor of 6443 is 6443.
3. What are the Factors of 6447?
Answer: Factors of 6447 are 1, 3, 7, 21, 307, 921, 2149, 6447. There are 8 integers that are factors of 6447. The greatest factor of 6447 is 6447.
4. How to Find the LCM of 6443 and 6447?
Answer:
Least Common Multiple of 6443 and 6447 = 41538021
Step 1: Find the prime factorization of 6443
6443 = 17 x 379
Step 2: Find the prime factorization of 6447
6447 = 3 x 7 x 307
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 41538021 = 3 x 7 x 17 x 307 x 379
Step 4: Therefore, the least common multiple of 6443 and 6447 is 41538021.