Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 283 and 287 the smallest integer that is 81221 that is divisible by both numbers.
Least Common Multiple (LCM) of 283 and 287 is 81221.
LCM(283,287) = 81221
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 283 and 287. First we will calculate the prime factors of 283 and 287.
Prime Factorization of 283
283 | 283 |
1 |
Prime factors of 283 are 283. Prime factorization of 283 in exponential form is:
283 = 2831
Prime Factorization of 287
7 | 287 |
41 | 41 |
1 |
Prime factors of 287 are 7,41. Prime factorization of 287 in exponential form is:
287 = 71×411
Now multiplying the highest exponent prime factors to calculate the LCM of 283 and 287.
LCM(283,287) = 71×411×2831
LCM(283,287) = 81221
Factors of 283
List of positive integer factors of 283 that divides 283 without a remainder.
1, 283
Factors of 287
List of positive integer factors of 287 that divides 287 without a remainder.
1, 7, 41, 287
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 283 and 287, than apply into the LCM equation.
GCF(283,287) = 1
LCM(283,287) = ( 283 × 287) / 1
LCM(283,287) = 81221 / 1
LCM(283,287) = 81221
(i) The LCM of 287 and 283 is associative
LCM of 283 and 287 = LCM of 287 and 283
1. What is the LCM of 283 and 287?
Answer: LCM of 283 and 287 is 81221.
2. What are the Factors of 283?
Answer: Factors of 283 are 1, 283. There are 2 integers that are factors of 283. The greatest factor of 283 is 283.
3. What are the Factors of 287?
Answer: Factors of 287 are 1, 7, 41, 287. There are 4 integers that are factors of 287. The greatest factor of 287 is 287.
4. How to Find the LCM of 283 and 287?
Answer:
Least Common Multiple of 283 and 287 = 81221
Step 1: Find the prime factorization of 283
283 = 283
Step 2: Find the prime factorization of 287
287 = 7 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 = 81221 = 7 x 41 x 283
Step 4: Therefore, the least common multiple of 283 and 287 is 81221.