Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 396 and 401 the smallest integer that is 158796 that is divisible by both numbers.
Least Common Multiple (LCM) of 396 and 401 is 158796.
LCM(396,401) = 158796
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 396 and 401. First we will calculate the prime factors of 396 and 401.
Prime Factorization of 396
2 | 396 |
2 | 198 |
3 | 99 |
3 | 33 |
11 | 11 |
1 |
Prime factors of 396 are 2, 3,11. Prime factorization of 396 in exponential form is:
396 = 22×32×111
Prime Factorization of 401
401 | 401 |
1 |
Prime factors of 401 are 401. Prime factorization of 401 in exponential form is:
401 = 4011
Now multiplying the highest exponent prime factors to calculate the LCM of 396 and 401.
LCM(396,401) = 22×32×111×4011
LCM(396,401) = 158796
Factors of 396
List of positive integer factors of 396 that divides 396 without a remainder.
1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396
Factors of 401
List of positive integer factors of 401 that divides 401 without a remainder.
1, 401
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 396 and 401, than apply into the LCM equation.
GCF(396,401) = 1
LCM(396,401) = ( 396 × 401) / 1
LCM(396,401) = 158796 / 1
LCM(396,401) = 158796
(i) The LCM of 401 and 396 is associative
LCM of 396 and 401 = LCM of 401 and 396
1. What is the LCM of 396 and 401?
Answer: LCM of 396 and 401 is 158796.
2. What are the Factors of 396?
Answer: Factors of 396 are 1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396. There are 18 integers that are factors of 396. The greatest factor of 396 is 396.
3. What are the Factors of 401?
Answer: Factors of 401 are 1, 401. There are 2 integers that are factors of 401. The greatest factor of 401 is 401.
4. How to Find the LCM of 396 and 401?
Answer:
Least Common Multiple of 396 and 401 = 158796
Step 1: Find the prime factorization of 396
396 = 2 x 2 x 3 x 3 x 11
Step 2: Find the prime factorization of 401
401 = 401
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 158796 = 2 x 2 x 3 x 3 x 11 x 401
Step 4: Therefore, the least common multiple of 396 and 401 is 158796.