Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 285 and 292 the smallest integer that is 83220 that is divisible by both numbers.
Least Common Multiple (LCM) of 285 and 292 is 83220.
LCM(285,292) = 83220
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 285 and 292. First we will calculate the prime factors of 285 and 292.
Prime Factorization of 285
3 | 285 |
5 | 95 |
19 | 19 |
1 |
Prime factors of 285 are 3, 5,19. Prime factorization of 285 in exponential form is:
285 = 31×51×191
Prime Factorization of 292
2 | 292 |
2 | 146 |
73 | 73 |
1 |
Prime factors of 292 are 2,73. Prime factorization of 292 in exponential form is:
292 = 22×731
Now multiplying the highest exponent prime factors to calculate the LCM of 285 and 292.
LCM(285,292) = 22×31×51×191×731
LCM(285,292) = 83220
Factors of 285
List of positive integer factors of 285 that divides 285 without a remainder.
1, 3, 5, 15, 19, 57, 95, 285
Factors of 292
List of positive integer factors of 292 that divides 292 without a remainder.
1, 2, 4, 73, 146, 292
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 285 and 292, than apply into the LCM equation.
GCF(285,292) = 1
LCM(285,292) = ( 285 × 292) / 1
LCM(285,292) = 83220 / 1
LCM(285,292) = 83220
(i) The LCM of 292 and 285 is associative
LCM of 285 and 292 = LCM of 292 and 285
1. What is the LCM of 285 and 292?
Answer: LCM of 285 and 292 is 83220.
2. What are the Factors of 285?
Answer: Factors of 285 are 1, 3, 5, 15, 19, 57, 95, 285. There are 8 integers that are factors of 285. The greatest factor of 285 is 285.
3. What are the Factors of 292?
Answer: Factors of 292 are 1, 2, 4, 73, 146, 292. There are 6 integers that are factors of 292. The greatest factor of 292 is 292.
4. How to Find the LCM of 285 and 292?
Answer:
Least Common Multiple of 285 and 292 = 83220
Step 1: Find the prime factorization of 285
285 = 3 x 5 x 19
Step 2: Find the prime factorization of 292
292 = 2 x 2 x 73
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 83220 = 2 x 2 x 3 x 5 x 19 x 73
Step 4: Therefore, the least common multiple of 285 and 292 is 83220.