Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 342 and 343 the smallest integer that is 117306 that is divisible by both numbers.
Least Common Multiple (LCM) of 342 and 343 is 117306.
LCM(342,343) = 117306
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 342 and 343. First we will calculate the prime factors of 342 and 343.
Prime Factorization of 342
2 | 342 |
3 | 171 |
3 | 57 |
19 | 19 |
1 |
Prime factors of 342 are 2, 3,19. Prime factorization of 342 in exponential form is:
342 = 21×32×191
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 342 and 343.
LCM(342,343) = 21×32×73×191
LCM(342,343) = 117306
Factors of 342
List of positive integer factors of 342 that divides 342 without a remainder.
1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342
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 342 and 343, than apply into the LCM equation.
GCF(342,343) = 1
LCM(342,343) = ( 342 × 343) / 1
LCM(342,343) = 117306 / 1
LCM(342,343) = 117306
(i) The LCM of 343 and 342 is associative
LCM of 342 and 343 = LCM of 343 and 342
1. What is the LCM of 342 and 343?
Answer: LCM of 342 and 343 is 117306.
2. What are the Factors of 342?
Answer: Factors of 342 are 1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342. There are 12 integers that are factors of 342. The greatest factor of 342 is 342.
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 342 and 343?
Answer:
Least Common Multiple of 342 and 343 = 117306
Step 1: Find the prime factorization of 342
342 = 2 x 3 x 3 x 19
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 = 117306 = 2 x 3 x 3 x 7 x 7 x 7 x 19
Step 4: Therefore, the least common multiple of 342 and 343 is 117306.