Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 8397 and 8405 the smallest integer that is 70576785 that is divisible by both numbers.
Least Common Multiple (LCM) of 8397 and 8405 is 70576785.
LCM(8397,8405) = 70576785
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 8397 and 8405. First we will calculate the prime factors of 8397 and 8405.
Prime Factorization of 8397
3 | 8397 |
3 | 2799 |
3 | 933 |
311 | 311 |
1 |
Prime factors of 8397 are 3,311. Prime factorization of 8397 in exponential form is:
8397 = 33×3111
Prime Factorization of 8405
5 | 8405 |
41 | 1681 |
41 | 41 |
1 |
Prime factors of 8405 are 5,41. Prime factorization of 8405 in exponential form is:
8405 = 51×412
Now multiplying the highest exponent prime factors to calculate the LCM of 8397 and 8405.
LCM(8397,8405) = 33×51×412×3111
LCM(8397,8405) = 70576785
Factors of 8397
List of positive integer factors of 8397 that divides 8397 without a remainder.
1, 3, 9, 27, 311, 933, 2799, 8397
Factors of 8405
List of positive integer factors of 8405 that divides 8405 without a remainder.
1, 5, 41, 205, 1681, 8405
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8397 and 8405, than apply into the LCM equation.
GCF(8397,8405) = 1
LCM(8397,8405) = ( 8397 × 8405) / 1
LCM(8397,8405) = 70576785 / 1
LCM(8397,8405) = 70576785
(i) The LCM of 8405 and 8397 is associative
LCM of 8397 and 8405 = LCM of 8405 and 8397
1. What is the LCM of 8397 and 8405?
Answer: LCM of 8397 and 8405 is 70576785.
2. What are the Factors of 8397?
Answer: Factors of 8397 are 1, 3, 9, 27, 311, 933, 2799, 8397. There are 8 integers that are factors of 8397. The greatest factor of 8397 is 8397.
3. What are the Factors of 8405?
Answer: Factors of 8405 are 1, 5, 41, 205, 1681, 8405. There are 6 integers that are factors of 8405. The greatest factor of 8405 is 8405.
4. How to Find the LCM of 8397 and 8405?
Answer:
Least Common Multiple of 8397 and 8405 = 70576785
Step 1: Find the prime factorization of 8397
8397 = 3 x 3 x 3 x 311
Step 2: Find the prime factorization of 8405
8405 = 5 x 41 x 41
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 70576785 = 3 x 3 x 3 x 5 x 41 x 41 x 311
Step 4: Therefore, the least common multiple of 8397 and 8405 is 70576785.