Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 204 and 205 the smallest integer that is 41820 that is divisible by both numbers.
Least Common Multiple (LCM) of 204 and 205 is 41820.
LCM(204,205) = 41820
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 204 and 205. First we will calculate the prime factors of 204 and 205.
Prime Factorization of 204
2 | 204 |
2 | 102 |
3 | 51 |
17 | 17 |
1 |
Prime factors of 204 are 2, 3,17. Prime factorization of 204 in exponential form is:
204 = 22×31×171
Prime Factorization of 205
5 | 205 |
41 | 41 |
1 |
Prime factors of 205 are 5,41. Prime factorization of 205 in exponential form is:
205 = 51×411
Now multiplying the highest exponent prime factors to calculate the LCM of 204 and 205.
LCM(204,205) = 22×31×51×171×411
LCM(204,205) = 41820
Factors of 204
List of positive integer factors of 204 that divides 204 without a remainder.
1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204
Factors of 205
List of positive integer factors of 205 that divides 205 without a remainder.
1, 5, 41, 205
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 204 and 205, than apply into the LCM equation.
GCF(204,205) = 1
LCM(204,205) = ( 204 × 205) / 1
LCM(204,205) = 41820 / 1
LCM(204,205) = 41820
(i) The LCM of 205 and 204 is associative
LCM of 204 and 205 = LCM of 205 and 204
1. What is the LCM of 204 and 205?
Answer: LCM of 204 and 205 is 41820.
2. What are the Factors of 204?
Answer: Factors of 204 are 1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204. There are 12 integers that are factors of 204. The greatest factor of 204 is 204.
3. What are the Factors of 205?
Answer: Factors of 205 are 1, 5, 41, 205. There are 4 integers that are factors of 205. The greatest factor of 205 is 205.
4. How to Find the LCM of 204 and 205?
Answer:
Least Common Multiple of 204 and 205 = 41820
Step 1: Find the prime factorization of 204
204 = 2 x 2 x 3 x 17
Step 2: Find the prime factorization of 205
205 = 5 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 = 41820 = 2 x 2 x 3 x 5 x 17 x 41
Step 4: Therefore, the least common multiple of 204 and 205 is 41820.