Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 284 and 288 the smallest integer that is 20448 that is divisible by both numbers.
Least Common Multiple (LCM) of 284 and 288 is 20448.
LCM(284,288) = 20448
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 284 and 288. First we will calculate the prime factors of 284 and 288.
Prime Factorization of 284
2 | 284 |
2 | 142 |
71 | 71 |
1 |
Prime factors of 284 are 2,71. Prime factorization of 284 in exponential form is:
284 = 22×711
Prime Factorization of 288
2 | 288 |
2 | 144 |
2 | 72 |
2 | 36 |
2 | 18 |
3 | 9 |
3 | 3 |
1 |
Prime factors of 288 are 2,3. Prime factorization of 288 in exponential form is:
288 = 25×32
Now multiplying the highest exponent prime factors to calculate the LCM of 284 and 288.
LCM(284,288) = 25×32×711
LCM(284,288) = 20448
Factors of 284
List of positive integer factors of 284 that divides 284 without a remainder.
1, 2, 4, 71, 142, 284
Factors of 288
List of positive integer factors of 288 that divides 288 without a remainder.
1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 288
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 284 and 288, than apply into the LCM equation.
GCF(284,288) = 4
LCM(284,288) = ( 284 × 288) / 4
LCM(284,288) = 81792 / 4
LCM(284,288) = 20448
(i) The LCM of 288 and 284 is associative
LCM of 284 and 288 = LCM of 288 and 284
1. What is the LCM of 284 and 288?
Answer: LCM of 284 and 288 is 20448.
2. What are the Factors of 284?
Answer: Factors of 284 are 1, 2, 4, 71, 142, 284. There are 6 integers that are factors of 284. The greatest factor of 284 is 284.
3. What are the Factors of 288?
Answer: Factors of 288 are 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 288. There are 18 integers that are factors of 288. The greatest factor of 288 is 288.
4. How to Find the LCM of 284 and 288?
Answer:
Least Common Multiple of 284 and 288 = 20448
Step 1: Find the prime factorization of 284
284 = 2 x 2 x 71
Step 2: Find the prime factorization of 288
288 = 2 x 2 x 2 x 2 x 2 x 3 x 3
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 20448 = 2 x 2 x 2 x 2 x 2 x 3 x 3 x 71
Step 4: Therefore, the least common multiple of 284 and 288 is 20448.