Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 6390 and 6397 the smallest integer that is 40876830 that is divisible by both numbers.
Least Common Multiple (LCM) of 6390 and 6397 is 40876830.
LCM(6390,6397) = 40876830
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 6390 and 6397. First we will calculate the prime factors of 6390 and 6397.
Prime Factorization of 6390
2 | 6390 |
3 | 3195 |
3 | 1065 |
5 | 355 |
71 | 71 |
1 |
Prime factors of 6390 are 2, 3, 5,71. Prime factorization of 6390 in exponential form is:
6390 = 21×32×51×711
Prime Factorization of 6397
6397 | 6397 |
1 |
Prime factors of 6397 are 6397. Prime factorization of 6397 in exponential form is:
6397 = 63971
Now multiplying the highest exponent prime factors to calculate the LCM of 6390 and 6397.
LCM(6390,6397) = 21×32×51×711×63971
LCM(6390,6397) = 40876830
Factors of 6390
List of positive integer factors of 6390 that divides 6390 without a remainder.
1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 71, 90, 142, 213, 355, 426, 639, 710, 1065, 1278, 2130, 3195, 6390
Factors of 6397
List of positive integer factors of 6397 that divides 6397 without a remainder.
1, 6397
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6390 and 6397, than apply into the LCM equation.
GCF(6390,6397) = 1
LCM(6390,6397) = ( 6390 × 6397) / 1
LCM(6390,6397) = 40876830 / 1
LCM(6390,6397) = 40876830
(i) The LCM of 6397 and 6390 is associative
LCM of 6390 and 6397 = LCM of 6397 and 6390
1. What is the LCM of 6390 and 6397?
Answer: LCM of 6390 and 6397 is 40876830.
2. What are the Factors of 6390?
Answer: Factors of 6390 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 71, 90, 142, 213, 355, 426, 639, 710, 1065, 1278, 2130, 3195, 6390. There are 24 integers that are factors of 6390. The greatest factor of 6390 is 6390.
3. What are the Factors of 6397?
Answer: Factors of 6397 are 1, 6397. There are 2 integers that are factors of 6397. The greatest factor of 6397 is 6397.
4. How to Find the LCM of 6390 and 6397?
Answer:
Least Common Multiple of 6390 and 6397 = 40876830
Step 1: Find the prime factorization of 6390
6390 = 2 x 3 x 3 x 5 x 71
Step 2: Find the prime factorization of 6397
6397 = 6397
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 40876830 = 2 x 3 x 3 x 5 x 71 x 6397
Step 4: Therefore, the least common multiple of 6390 and 6397 is 40876830.