Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 340 and 342 the smallest integer that is 58140 that is divisible by both numbers.
Least Common Multiple (LCM) of 340 and 342 is 58140.
LCM(340,342) = 58140
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 340 and 342. First we will calculate the prime factors of 340 and 342.
Prime Factorization of 340
2 | 340 |
2 | 170 |
5 | 85 |
17 | 17 |
1 |
Prime factors of 340 are 2, 5,17. Prime factorization of 340 in exponential form is:
340 = 22×51×171
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
Now multiplying the highest exponent prime factors to calculate the LCM of 340 and 342.
LCM(340,342) = 22×32×51×171×191
LCM(340,342) = 58140
Factors of 340
List of positive integer factors of 340 that divides 340 without a remainder.
1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340
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
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 340 and 342, than apply into the LCM equation.
GCF(340,342) = 2
LCM(340,342) = ( 340 × 342) / 2
LCM(340,342) = 116280 / 2
LCM(340,342) = 58140
(i) The LCM of 342 and 340 is associative
LCM of 340 and 342 = LCM of 342 and 340
1. What is the LCM of 340 and 342?
Answer: LCM of 340 and 342 is 58140.
2. What are the Factors of 340?
Answer: Factors of 340 are 1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340. There are 12 integers that are factors of 340. The greatest factor of 340 is 340.
3. 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.
4. How to Find the LCM of 340 and 342?
Answer:
Least Common Multiple of 340 and 342 = 58140
Step 1: Find the prime factorization of 340
340 = 2 x 2 x 5 x 17
Step 2: Find the prime factorization of 342
342 = 2 x 3 x 3 x 19
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 58140 = 2 x 2 x 3 x 3 x 5 x 17 x 19
Step 4: Therefore, the least common multiple of 340 and 342 is 58140.