Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 4085 and 4089 the smallest integer that is 16703565 that is divisible by both numbers.
Least Common Multiple (LCM) of 4085 and 4089 is 16703565.
LCM(4085,4089) = 16703565
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 4085 and 4089. First we will calculate the prime factors of 4085 and 4089.
Prime Factorization of 4085
5 | 4085 |
19 | 817 |
43 | 43 |
1 |
Prime factors of 4085 are 5, 19,43. Prime factorization of 4085 in exponential form is:
4085 = 51×191×431
Prime Factorization of 4089
3 | 4089 |
29 | 1363 |
47 | 47 |
1 |
Prime factors of 4089 are 3, 29,47. Prime factorization of 4089 in exponential form is:
4089 = 31×291×471
Now multiplying the highest exponent prime factors to calculate the LCM of 4085 and 4089.
LCM(4085,4089) = 31×51×191×291×431×471
LCM(4085,4089) = 16703565
Factors of 4085
List of positive integer factors of 4085 that divides 4085 without a remainder.
1, 5, 19, 43, 95, 215, 817, 4085
Factors of 4089
List of positive integer factors of 4089 that divides 4089 without a remainder.
1, 3, 29, 47, 87, 141, 1363, 4089
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4085 and 4089, than apply into the LCM equation.
GCF(4085,4089) = 1
LCM(4085,4089) = ( 4085 × 4089) / 1
LCM(4085,4089) = 16703565 / 1
LCM(4085,4089) = 16703565
(i) The LCM of 4089 and 4085 is associative
LCM of 4085 and 4089 = LCM of 4089 and 4085
1. What is the LCM of 4085 and 4089?
Answer: LCM of 4085 and 4089 is 16703565.
2. What are the Factors of 4085?
Answer: Factors of 4085 are 1, 5, 19, 43, 95, 215, 817, 4085. There are 8 integers that are factors of 4085. The greatest factor of 4085 is 4085.
3. What are the Factors of 4089?
Answer: Factors of 4089 are 1, 3, 29, 47, 87, 141, 1363, 4089. There are 8 integers that are factors of 4089. The greatest factor of 4089 is 4089.
4. How to Find the LCM of 4085 and 4089?
Answer:
Least Common Multiple of 4085 and 4089 = 16703565
Step 1: Find the prime factorization of 4085
4085 = 5 x 19 x 43
Step 2: Find the prime factorization of 4089
4089 = 3 x 29 x 47
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 16703565 = 3 x 5 x 19 x 29 x 43 x 47
Step 4: Therefore, the least common multiple of 4085 and 4089 is 16703565.