Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 286 and 291 the smallest integer that is 83226 that is divisible by both numbers.
Least Common Multiple (LCM) of 286 and 291 is 83226.
LCM(286,291) = 83226
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 286 and 291. First we will calculate the prime factors of 286 and 291.
Prime Factorization of 286
2 | 286 |
11 | 143 |
13 | 13 |
1 |
Prime factors of 286 are 2, 11,13. Prime factorization of 286 in exponential form is:
286 = 21×111×131
Prime Factorization of 291
3 | 291 |
97 | 97 |
1 |
Prime factors of 291 are 3,97. Prime factorization of 291 in exponential form is:
291 = 31×971
Now multiplying the highest exponent prime factors to calculate the LCM of 286 and 291.
LCM(286,291) = 21×31×111×131×971
LCM(286,291) = 83226
Factors of 286
List of positive integer factors of 286 that divides 286 without a remainder.
1, 2, 11, 13, 22, 26, 143, 286
Factors of 291
List of positive integer factors of 291 that divides 291 without a remainder.
1, 3, 97, 291
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 286 and 291, than apply into the LCM equation.
GCF(286,291) = 1
LCM(286,291) = ( 286 × 291) / 1
LCM(286,291) = 83226 / 1
LCM(286,291) = 83226
(i) The LCM of 291 and 286 is associative
LCM of 286 and 291 = LCM of 291 and 286
1. What is the LCM of 286 and 291?
Answer: LCM of 286 and 291 is 83226.
2. What are the Factors of 286?
Answer: Factors of 286 are 1, 2, 11, 13, 22, 26, 143, 286. There are 8 integers that are factors of 286. The greatest factor of 286 is 286.
3. What are the Factors of 291?
Answer: Factors of 291 are 1, 3, 97, 291. There are 4 integers that are factors of 291. The greatest factor of 291 is 291.
4. How to Find the LCM of 286 and 291?
Answer:
Least Common Multiple of 286 and 291 = 83226
Step 1: Find the prime factorization of 286
286 = 2 x 11 x 13
Step 2: Find the prime factorization of 291
291 = 3 x 97
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 83226 = 2 x 3 x 11 x 13 x 97
Step 4: Therefore, the least common multiple of 286 and 291 is 83226.