Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 6434 and 6438 the smallest integer that is 20711046 that is divisible by both numbers.
Least Common Multiple (LCM) of 6434 and 6438 is 20711046.
LCM(6434,6438) = 20711046
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 6434 and 6438. First we will calculate the prime factors of 6434 and 6438.
Prime Factorization of 6434
2 | 6434 |
3217 | 3217 |
1 |
Prime factors of 6434 are 2,3217. Prime factorization of 6434 in exponential form is:
6434 = 21×32171
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
Now multiplying the highest exponent prime factors to calculate the LCM of 6434 and 6438.
LCM(6434,6438) = 21×31×291×371×32171
LCM(6434,6438) = 20711046
Factors of 6434
List of positive integer factors of 6434 that divides 6434 without a remainder.
1, 2, 3217, 6434
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
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6434 and 6438, than apply into the LCM equation.
GCF(6434,6438) = 2
LCM(6434,6438) = ( 6434 × 6438) / 2
LCM(6434,6438) = 41422092 / 2
LCM(6434,6438) = 20711046
(i) The LCM of 6438 and 6434 is associative
LCM of 6434 and 6438 = LCM of 6438 and 6434
1. What is the LCM of 6434 and 6438?
Answer: LCM of 6434 and 6438 is 20711046.
2. What are the Factors of 6434?
Answer: Factors of 6434 are 1, 2, 3217, 6434. There are 4 integers that are factors of 6434. The greatest factor of 6434 is 6434.
3. 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.
4. How to Find the LCM of 6434 and 6438?
Answer:
Least Common Multiple of 6434 and 6438 = 20711046
Step 1: Find the prime factorization of 6434
6434 = 2 x 3217
Step 2: Find the prime factorization of 6438
6438 = 2 x 3 x 29 x 37
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 20711046 = 2 x 3 x 29 x 37 x 3217
Step 4: Therefore, the least common multiple of 6434 and 6438 is 20711046.