Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 225 and 228 the smallest integer that is 17100 that is divisible by both numbers.
Least Common Multiple (LCM) of 225 and 228 is 17100.
LCM(225,228) = 17100
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 225 and 228. First we will calculate the prime factors of 225 and 228.
Prime Factorization of 225
3 | 225 |
3 | 75 |
5 | 25 |
5 | 5 |
1 |
Prime factors of 225 are 3,5. Prime factorization of 225 in exponential form is:
225 = 32×52
Prime Factorization of 228
2 | 228 |
2 | 114 |
3 | 57 |
19 | 19 |
1 |
Prime factors of 228 are 2, 3,19. Prime factorization of 228 in exponential form is:
228 = 22×31×191
Now multiplying the highest exponent prime factors to calculate the LCM of 225 and 228.
LCM(225,228) = 22×32×52×191
LCM(225,228) = 17100
Factors of 225
List of positive integer factors of 225 that divides 225 without a remainder.
1, 3, 5, 9, 15, 25, 45, 75, 225
Factors of 228
List of positive integer factors of 228 that divides 228 without a remainder.
1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 225 and 228, than apply into the LCM equation.
GCF(225,228) = 3
LCM(225,228) = ( 225 × 228) / 3
LCM(225,228) = 51300 / 3
LCM(225,228) = 17100
(i) The LCM of 228 and 225 is associative
LCM of 225 and 228 = LCM of 228 and 225
1. What is the LCM of 225 and 228?
Answer: LCM of 225 and 228 is 17100.
2. What are the Factors of 225?
Answer: Factors of 225 are 1, 3, 5, 9, 15, 25, 45, 75, 225. There are 9 integers that are factors of 225. The greatest factor of 225 is 225.
3. What are the Factors of 228?
Answer: Factors of 228 are 1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228. There are 12 integers that are factors of 228. The greatest factor of 228 is 228.
4. How to Find the LCM of 225 and 228?
Answer:
Least Common Multiple of 225 and 228 = 17100
Step 1: Find the prime factorization of 225
225 = 3 x 3 x 5 x 5
Step 2: Find the prime factorization of 228
228 = 2 x 2 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 = 17100 = 2 x 2 x 3 x 3 x 5 x 5 x 19
Step 4: Therefore, the least common multiple of 225 and 228 is 17100.