Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 345 and 353 the smallest integer that is 121785 that is divisible by both numbers.
Least Common Multiple (LCM) of 345 and 353 is 121785.
LCM(345,353) = 121785
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 345 and 353. First we will calculate the prime factors of 345 and 353.
Prime Factorization of 345
3 | 345 |
5 | 115 |
23 | 23 |
1 |
Prime factors of 345 are 3, 5,23. Prime factorization of 345 in exponential form is:
345 = 31×51×231
Prime Factorization of 353
353 | 353 |
1 |
Prime factors of 353 are 353. Prime factorization of 353 in exponential form is:
353 = 3531
Now multiplying the highest exponent prime factors to calculate the LCM of 345 and 353.
LCM(345,353) = 31×51×231×3531
LCM(345,353) = 121785
Factors of 345
List of positive integer factors of 345 that divides 345 without a remainder.
1, 3, 5, 15, 23, 69, 115, 345
Factors of 353
List of positive integer factors of 353 that divides 353 without a remainder.
1, 353
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 345 and 353, than apply into the LCM equation.
GCF(345,353) = 1
LCM(345,353) = ( 345 × 353) / 1
LCM(345,353) = 121785 / 1
LCM(345,353) = 121785
(i) The LCM of 353 and 345 is associative
LCM of 345 and 353 = LCM of 353 and 345
1. What is the LCM of 345 and 353?
Answer: LCM of 345 and 353 is 121785.
2. What are the Factors of 345?
Answer: Factors of 345 are 1, 3, 5, 15, 23, 69, 115, 345. There are 8 integers that are factors of 345. The greatest factor of 345 is 345.
3. What are the Factors of 353?
Answer: Factors of 353 are 1, 353. There are 2 integers that are factors of 353. The greatest factor of 353 is 353.
4. How to Find the LCM of 345 and 353?
Answer:
Least Common Multiple of 345 and 353 = 121785
Step 1: Find the prime factorization of 345
345 = 3 x 5 x 23
Step 2: Find the prime factorization of 353
353 = 353
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 121785 = 3 x 5 x 23 x 353
Step 4: Therefore, the least common multiple of 345 and 353 is 121785.