Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 395 and 403 the smallest integer that is 159185 that is divisible by both numbers.
Least Common Multiple (LCM) of 395 and 403 is 159185.
LCM(395,403) = 159185
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 395 and 403. First we will calculate the prime factors of 395 and 403.
Prime Factorization of 395
5 | 395 |
79 | 79 |
1 |
Prime factors of 395 are 5,79. Prime factorization of 395 in exponential form is:
395 = 51×791
Prime Factorization of 403
13 | 403 |
31 | 31 |
1 |
Prime factors of 403 are 13,31. Prime factorization of 403 in exponential form is:
403 = 131×311
Now multiplying the highest exponent prime factors to calculate the LCM of 395 and 403.
LCM(395,403) = 51×131×311×791
LCM(395,403) = 159185
Factors of 395
List of positive integer factors of 395 that divides 395 without a remainder.
1, 5, 79, 395
Factors of 403
List of positive integer factors of 403 that divides 403 without a remainder.
1, 13, 31, 403
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 395 and 403, than apply into the LCM equation.
GCF(395,403) = 1
LCM(395,403) = ( 395 × 403) / 1
LCM(395,403) = 159185 / 1
LCM(395,403) = 159185
(i) The LCM of 403 and 395 is associative
LCM of 395 and 403 = LCM of 403 and 395
1. What is the LCM of 395 and 403?
Answer: LCM of 395 and 403 is 159185.
2. What are the Factors of 395?
Answer: Factors of 395 are 1, 5, 79, 395. There are 4 integers that are factors of 395. The greatest factor of 395 is 395.
3. What are the Factors of 403?
Answer: Factors of 403 are 1, 13, 31, 403. There are 4 integers that are factors of 403. The greatest factor of 403 is 403.
4. How to Find the LCM of 395 and 403?
Answer:
Least Common Multiple of 395 and 403 = 159185
Step 1: Find the prime factorization of 395
395 = 5 x 79
Step 2: Find the prime factorization of 403
403 = 13 x 31
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 159185 = 5 x 13 x 31 x 79
Step 4: Therefore, the least common multiple of 395 and 403 is 159185.