Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 394 and 401 the smallest integer that is 157994 that is divisible by both numbers.
Least Common Multiple (LCM) of 394 and 401 is 157994.
LCM(394,401) = 157994
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 394 and 401. First we will calculate the prime factors of 394 and 401.
Prime Factorization of 394
2 | 394 |
197 | 197 |
1 |
Prime factors of 394 are 2,197. Prime factorization of 394 in exponential form is:
394 = 21×1971
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 394 and 401.
LCM(394,401) = 21×1971×4011
LCM(394,401) = 157994
Factors of 394
List of positive integer factors of 394 that divides 394 without a remainder.
1, 2, 197, 394
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 394 and 401, than apply into the LCM equation.
GCF(394,401) = 1
LCM(394,401) = ( 394 × 401) / 1
LCM(394,401) = 157994 / 1
LCM(394,401) = 157994
(i) The LCM of 401 and 394 is associative
LCM of 394 and 401 = LCM of 401 and 394
1. What is the LCM of 394 and 401?
Answer: LCM of 394 and 401 is 157994.
2. What are the Factors of 394?
Answer: Factors of 394 are 1, 2, 197, 394. There are 4 integers that are factors of 394. The greatest factor of 394 is 394.
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 394 and 401?
Answer:
Least Common Multiple of 394 and 401 = 157994
Step 1: Find the prime factorization of 394
394 = 2 x 197
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 = 157994 = 2 x 197 x 401
Step 4: Therefore, the least common multiple of 394 and 401 is 157994.