Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 486 and 492 the smallest integer that is 39852 that is divisible by both numbers.
Least Common Multiple (LCM) of 486 and 492 is 39852.
LCM(486,492) = 39852
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 486 and 492. First we will calculate the prime factors of 486 and 492.
Prime Factorization of 486
2 | 486 |
3 | 243 |
3 | 81 |
3 | 27 |
3 | 9 |
3 | 3 |
1 |
Prime factors of 486 are 2,3. Prime factorization of 486 in exponential form is:
486 = 21×35
Prime Factorization of 492
2 | 492 |
2 | 246 |
3 | 123 |
41 | 41 |
1 |
Prime factors of 492 are 2, 3,41. Prime factorization of 492 in exponential form is:
492 = 22×31×411
Now multiplying the highest exponent prime factors to calculate the LCM of 486 and 492.
LCM(486,492) = 22×35×411
LCM(486,492) = 39852
Factors of 486
List of positive integer factors of 486 that divides 486 without a remainder.
1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486
Factors of 492
List of positive integer factors of 492 that divides 492 without a remainder.
1, 2, 3, 4, 6, 12, 41, 82, 123, 164, 246, 492
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 486 and 492, than apply into the LCM equation.
GCF(486,492) = 6
LCM(486,492) = ( 486 × 492) / 6
LCM(486,492) = 239112 / 6
LCM(486,492) = 39852
(i) The LCM of 492 and 486 is associative
LCM of 486 and 492 = LCM of 492 and 486
1. What is the LCM of 486 and 492?
Answer: LCM of 486 and 492 is 39852.
2. What are the Factors of 486?
Answer: Factors of 486 are 1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486. There are 12 integers that are factors of 486. The greatest factor of 486 is 486.
3. What are the Factors of 492?
Answer: Factors of 492 are 1, 2, 3, 4, 6, 12, 41, 82, 123, 164, 246, 492. There are 12 integers that are factors of 492. The greatest factor of 492 is 492.
4. How to Find the LCM of 486 and 492?
Answer:
Least Common Multiple of 486 and 492 = 39852
Step 1: Find the prime factorization of 486
486 = 2 x 3 x 3 x 3 x 3 x 3
Step 2: Find the prime factorization of 492
492 = 2 x 2 x 3 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 = 39852 = 2 x 2 x 3 x 3 x 3 x 3 x 3 x 41
Step 4: Therefore, the least common multiple of 486 and 492 is 39852.