Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 243 and 246 the smallest integer that is 19926 that is divisible by both numbers.
Least Common Multiple (LCM) of 243 and 246 is 19926.
LCM(243,246) = 19926
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 243 and 246. First we will calculate the prime factors of 243 and 246.
Prime Factorization of 243
3 | 243 |
3 | 81 |
3 | 27 |
3 | 9 |
3 | 3 |
1 |
Prime factors of 243 are 3. Prime factorization of 243 in exponential form is:
243 = 35
Prime Factorization of 246
2 | 246 |
3 | 123 |
41 | 41 |
1 |
Prime factors of 246 are 2, 3,41. Prime factorization of 246 in exponential form is:
246 = 21×31×411
Now multiplying the highest exponent prime factors to calculate the LCM of 243 and 246.
LCM(243,246) = 21×35×411
LCM(243,246) = 19926
Factors of 243
List of positive integer factors of 243 that divides 243 without a remainder.
1, 3, 9, 27, 81, 243
Factors of 246
List of positive integer factors of 246 that divides 246 without a remainder.
1, 2, 3, 6, 41, 82, 123, 246
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 243 and 246, than apply into the LCM equation.
GCF(243,246) = 3
LCM(243,246) = ( 243 × 246) / 3
LCM(243,246) = 59778 / 3
LCM(243,246) = 19926
(i) The LCM of 246 and 243 is associative
LCM of 243 and 246 = LCM of 246 and 243
1. What is the LCM of 243 and 246?
Answer: LCM of 243 and 246 is 19926.
2. What are the Factors of 243?
Answer: Factors of 243 are 1, 3, 9, 27, 81, 243. There are 6 integers that are factors of 243. The greatest factor of 243 is 243.
3. What are the Factors of 246?
Answer: Factors of 246 are 1, 2, 3, 6, 41, 82, 123, 246. There are 8 integers that are factors of 246. The greatest factor of 246 is 246.
4. How to Find the LCM of 243 and 246?
Answer:
Least Common Multiple of 243 and 246 = 19926
Step 1: Find the prime factorization of 243
243 = 3 x 3 x 3 x 3 x 3
Step 2: Find the prime factorization of 246
246 = 2 x 3 x 41
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 19926 = 2 x 3 x 3 x 3 x 3 x 3 x 41
Step 4: Therefore, the least common multiple of 243 and 246 is 19926.