Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 6439 and 6447 the smallest integer that is 41512233 that is divisible by both numbers.
Least Common Multiple (LCM) of 6439 and 6447 is 41512233.
LCM(6439,6447) = 41512233
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 6439 and 6447. First we will calculate the prime factors of 6439 and 6447.
Prime Factorization of 6439
47 | 6439 |
137 | 137 |
1 |
Prime factors of 6439 are 47,137. Prime factorization of 6439 in exponential form is:
6439 = 471×1371
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 6439 and 6447.
LCM(6439,6447) = 31×71×471×1371×3071
LCM(6439,6447) = 41512233
Factors of 6439
List of positive integer factors of 6439 that divides 6439 without a remainder.
1, 47, 137, 6439
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 6439 and 6447, than apply into the LCM equation.
GCF(6439,6447) = 1
LCM(6439,6447) = ( 6439 × 6447) / 1
LCM(6439,6447) = 41512233 / 1
LCM(6439,6447) = 41512233
(i) The LCM of 6447 and 6439 is associative
LCM of 6439 and 6447 = LCM of 6447 and 6439
1. What is the LCM of 6439 and 6447?
Answer: LCM of 6439 and 6447 is 41512233.
2. What are the Factors of 6439?
Answer: Factors of 6439 are 1, 47, 137, 6439. There are 4 integers that are factors of 6439. The greatest factor of 6439 is 6439.
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 6439 and 6447?
Answer:
Least Common Multiple of 6439 and 6447 = 41512233
Step 1: Find the prime factorization of 6439
6439 = 47 x 137
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 = 41512233 = 3 x 7 x 47 x 137 x 307
Step 4: Therefore, the least common multiple of 6439 and 6447 is 41512233.