Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 399 and 404 the smallest integer that is 161196 that is divisible by both numbers.
Least Common Multiple (LCM) of 399 and 404 is 161196.
LCM(399,404) = 161196
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 399 and 404. First we will calculate the prime factors of 399 and 404.
Prime Factorization of 399
3 | 399 |
7 | 133 |
19 | 19 |
1 |
Prime factors of 399 are 3, 7,19. Prime factorization of 399 in exponential form is:
399 = 31×71×191
Prime Factorization of 404
2 | 404 |
2 | 202 |
101 | 101 |
1 |
Prime factors of 404 are 2,101. Prime factorization of 404 in exponential form is:
404 = 22×1011
Now multiplying the highest exponent prime factors to calculate the LCM of 399 and 404.
LCM(399,404) = 22×31×71×191×1011
LCM(399,404) = 161196
Factors of 399
List of positive integer factors of 399 that divides 399 without a remainder.
1, 3, 7, 19, 21, 57, 133, 399
Factors of 404
List of positive integer factors of 404 that divides 404 without a remainder.
1, 2, 4, 101, 202, 404
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 399 and 404, than apply into the LCM equation.
GCF(399,404) = 1
LCM(399,404) = ( 399 × 404) / 1
LCM(399,404) = 161196 / 1
LCM(399,404) = 161196
(i) The LCM of 404 and 399 is associative
LCM of 399 and 404 = LCM of 404 and 399
1. What is the LCM of 399 and 404?
Answer: LCM of 399 and 404 is 161196.
2. What are the Factors of 399?
Answer: Factors of 399 are 1, 3, 7, 19, 21, 57, 133, 399. There are 8 integers that are factors of 399. The greatest factor of 399 is 399.
3. What are the Factors of 404?
Answer: Factors of 404 are 1, 2, 4, 101, 202, 404. There are 6 integers that are factors of 404. The greatest factor of 404 is 404.
4. How to Find the LCM of 399 and 404?
Answer:
Least Common Multiple of 399 and 404 = 161196
Step 1: Find the prime factorization of 399
399 = 3 x 7 x 19
Step 2: Find the prime factorization of 404
404 = 2 x 2 x 101
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 161196 = 2 x 2 x 3 x 7 x 19 x 101
Step 4: Therefore, the least common multiple of 399 and 404 is 161196.