Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 338 and 343 the smallest integer that is 115934 that is divisible by both numbers.
Least Common Multiple (LCM) of 338 and 343 is 115934.
LCM(338,343) = 115934
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 338 and 343. First we will calculate the prime factors of 338 and 343.
Prime Factorization of 338
2 | 338 |
13 | 169 |
13 | 13 |
1 |
Prime factors of 338 are 2,13. Prime factorization of 338 in exponential form is:
338 = 21×132
Prime Factorization of 343
7 | 343 |
7 | 49 |
7 | 7 |
1 |
Prime factors of 343 are 7. Prime factorization of 343 in exponential form is:
343 = 73
Now multiplying the highest exponent prime factors to calculate the LCM of 338 and 343.
LCM(338,343) = 21×73×132
LCM(338,343) = 115934
Factors of 338
List of positive integer factors of 338 that divides 338 without a remainder.
1, 2, 13, 26, 169, 338
Factors of 343
List of positive integer factors of 343 that divides 343 without a remainder.
1, 7, 49, 343
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 338 and 343, than apply into the LCM equation.
GCF(338,343) = 1
LCM(338,343) = ( 338 × 343) / 1
LCM(338,343) = 115934 / 1
LCM(338,343) = 115934
(i) The LCM of 343 and 338 is associative
LCM of 338 and 343 = LCM of 343 and 338
1. What is the LCM of 338 and 343?
Answer: LCM of 338 and 343 is 115934.
2. What are the Factors of 338?
Answer: Factors of 338 are 1, 2, 13, 26, 169, 338. There are 6 integers that are factors of 338. The greatest factor of 338 is 338.
3. What are the Factors of 343?
Answer: Factors of 343 are 1, 7, 49, 343. There are 4 integers that are factors of 343. The greatest factor of 343 is 343.
4. How to Find the LCM of 338 and 343?
Answer:
Least Common Multiple of 338 and 343 = 115934
Step 1: Find the prime factorization of 338
338 = 2 x 13 x 13
Step 2: Find the prime factorization of 343
343 = 7 x 7 x 7
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 115934 = 2 x 7 x 7 x 7 x 13 x 13
Step 4: Therefore, the least common multiple of 338 and 343 is 115934.