Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 489 and 495 the smallest integer that is 80685 that is divisible by both numbers.
Least Common Multiple (LCM) of 489 and 495 is 80685.
LCM(489,495) = 80685
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 489 and 495. First we will calculate the prime factors of 489 and 495.
Prime Factorization of 489
3 | 489 |
163 | 163 |
1 |
Prime factors of 489 are 3,163. Prime factorization of 489 in exponential form is:
489 = 31×1631
Prime Factorization of 495
3 | 495 |
3 | 165 |
5 | 55 |
11 | 11 |
1 |
Prime factors of 495 are 3, 5,11. Prime factorization of 495 in exponential form is:
495 = 32×51×111
Now multiplying the highest exponent prime factors to calculate the LCM of 489 and 495.
LCM(489,495) = 32×51×111×1631
LCM(489,495) = 80685
Factors of 489
List of positive integer factors of 489 that divides 489 without a remainder.
1, 3, 163, 489
Factors of 495
List of positive integer factors of 495 that divides 495 without a remainder.
1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 489 and 495, than apply into the LCM equation.
GCF(489,495) = 3
LCM(489,495) = ( 489 × 495) / 3
LCM(489,495) = 242055 / 3
LCM(489,495) = 80685
(i) The LCM of 495 and 489 is associative
LCM of 489 and 495 = LCM of 495 and 489
1. What is the LCM of 489 and 495?
Answer: LCM of 489 and 495 is 80685.
2. What are the Factors of 489?
Answer: Factors of 489 are 1, 3, 163, 489. There are 4 integers that are factors of 489. The greatest factor of 489 is 489.
3. What are the Factors of 495?
Answer: Factors of 495 are 1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495. There are 12 integers that are factors of 495. The greatest factor of 495 is 495.
4. How to Find the LCM of 489 and 495?
Answer:
Least Common Multiple of 489 and 495 = 80685
Step 1: Find the prime factorization of 489
489 = 3 x 163
Step 2: Find the prime factorization of 495
495 = 3 x 3 x 5 x 11
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 80685 = 3 x 3 x 5 x 11 x 163
Step 4: Therefore, the least common multiple of 489 and 495 is 80685.