Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 6438 and 6444 the smallest integer that is 6914412 that is divisible by both numbers.
Least Common Multiple (LCM) of 6438 and 6444 is 6914412.
LCM(6438,6444) = 6914412
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 6438 and 6444. First we will calculate the prime factors of 6438 and 6444.
Prime Factorization of 6438
2 | 6438 |
3 | 3219 |
29 | 1073 |
37 | 37 |
1 |
Prime factors of 6438 are 2, 3, 29,37. Prime factorization of 6438 in exponential form is:
6438 = 21×31×291×371
Prime Factorization of 6444
2 | 6444 |
2 | 3222 |
3 | 1611 |
3 | 537 |
179 | 179 |
1 |
Prime factors of 6444 are 2, 3,179. Prime factorization of 6444 in exponential form is:
6444 = 22×32×1791
Now multiplying the highest exponent prime factors to calculate the LCM of 6438 and 6444.
LCM(6438,6444) = 22×32×291×371×1791
LCM(6438,6444) = 6914412
Factors of 6438
List of positive integer factors of 6438 that divides 6438 without a remainder.
1, 2, 3, 6, 29, 37, 58, 74, 87, 111, 174, 222, 1073, 2146, 3219, 6438
Factors of 6444
List of positive integer factors of 6444 that divides 6444 without a remainder.
1, 2, 3, 4, 6, 9, 12, 18, 36, 179, 358, 537, 716, 1074, 1611, 2148, 3222, 6444
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6438 and 6444, than apply into the LCM equation.
GCF(6438,6444) = 6
LCM(6438,6444) = ( 6438 × 6444) / 6
LCM(6438,6444) = 41486472 / 6
LCM(6438,6444) = 6914412
(i) The LCM of 6444 and 6438 is associative
LCM of 6438 and 6444 = LCM of 6444 and 6438
1. What is the LCM of 6438 and 6444?
Answer: LCM of 6438 and 6444 is 6914412.
2. What are the Factors of 6438?
Answer: Factors of 6438 are 1, 2, 3, 6, 29, 37, 58, 74, 87, 111, 174, 222, 1073, 2146, 3219, 6438. There are 16 integers that are factors of 6438. The greatest factor of 6438 is 6438.
3. What are the Factors of 6444?
Answer: Factors of 6444 are 1, 2, 3, 4, 6, 9, 12, 18, 36, 179, 358, 537, 716, 1074, 1611, 2148, 3222, 6444. There are 18 integers that are factors of 6444. The greatest factor of 6444 is 6444.
4. How to Find the LCM of 6438 and 6444?
Answer:
Least Common Multiple of 6438 and 6444 = 6914412
Step 1: Find the prime factorization of 6438
6438 = 2 x 3 x 29 x 37
Step 2: Find the prime factorization of 6444
6444 = 2 x 2 x 3 x 3 x 179
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 6914412 = 2 x 2 x 3 x 3 x 29 x 37 x 179
Step 4: Therefore, the least common multiple of 6438 and 6444 is 6914412.