Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 231 and 235 the smallest integer that is 54285 that is divisible by both numbers.
Least Common Multiple (LCM) of 231 and 235 is 54285.
LCM(231,235) = 54285
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 231 and 235. First we will calculate the prime factors of 231 and 235.
Prime Factorization of 231
3 | 231 |
7 | 77 |
11 | 11 |
1 |
Prime factors of 231 are 3, 7,11. Prime factorization of 231 in exponential form is:
231 = 31×71×111
Prime Factorization of 235
5 | 235 |
47 | 47 |
1 |
Prime factors of 235 are 5,47. Prime factorization of 235 in exponential form is:
235 = 51×471
Now multiplying the highest exponent prime factors to calculate the LCM of 231 and 235.
LCM(231,235) = 31×51×71×111×471
LCM(231,235) = 54285
Factors of 231
List of positive integer factors of 231 that divides 231 without a remainder.
1, 3, 7, 11, 21, 33, 77, 231
Factors of 235
List of positive integer factors of 235 that divides 235 without a remainder.
1, 5, 47, 235
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 231 and 235, than apply into the LCM equation.
GCF(231,235) = 1
LCM(231,235) = ( 231 × 235) / 1
LCM(231,235) = 54285 / 1
LCM(231,235) = 54285
(i) The LCM of 235 and 231 is associative
LCM of 231 and 235 = LCM of 235 and 231
1. What is the LCM of 231 and 235?
Answer: LCM of 231 and 235 is 54285.
2. What are the Factors of 231?
Answer: Factors of 231 are 1, 3, 7, 11, 21, 33, 77, 231. There are 8 integers that are factors of 231. The greatest factor of 231 is 231.
3. What are the Factors of 235?
Answer: Factors of 235 are 1, 5, 47, 235. There are 4 integers that are factors of 235. The greatest factor of 235 is 235.
4. How to Find the LCM of 231 and 235?
Answer:
Least Common Multiple of 231 and 235 = 54285
Step 1: Find the prime factorization of 231
231 = 3 x 7 x 11
Step 2: Find the prime factorization of 235
235 = 5 x 47
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 54285 = 3 x 5 x 7 x 11 x 47
Step 4: Therefore, the least common multiple of 231 and 235 is 54285.