Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 9885 and 9891 the smallest integer that is 32590845 that is divisible by both numbers.
Least Common Multiple (LCM) of 9885 and 9891 is 32590845.
LCM(9885,9891) = 32590845
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 9885 and 9891. First we will calculate the prime factors of 9885 and 9891.
Prime Factorization of 9885
3 | 9885 |
5 | 3295 |
659 | 659 |
1 |
Prime factors of 9885 are 3, 5,659. Prime factorization of 9885 in exponential form is:
9885 = 31×51×6591
Prime Factorization of 9891
3 | 9891 |
3 | 3297 |
7 | 1099 |
157 | 157 |
1 |
Prime factors of 9891 are 3, 7,157. Prime factorization of 9891 in exponential form is:
9891 = 32×71×1571
Now multiplying the highest exponent prime factors to calculate the LCM of 9885 and 9891.
LCM(9885,9891) = 32×51×71×1571×6591
LCM(9885,9891) = 32590845
Factors of 9885
List of positive integer factors of 9885 that divides 9885 without a remainder.
1, 3, 5, 15, 659, 1977, 3295, 9885
Factors of 9891
List of positive integer factors of 9891 that divides 9891 without a remainder.
1, 3, 7, 9, 21, 63, 157, 471, 1099, 1413, 3297, 9891
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9885 and 9891, than apply into the LCM equation.
GCF(9885,9891) = 3
LCM(9885,9891) = ( 9885 × 9891) / 3
LCM(9885,9891) = 97772535 / 3
LCM(9885,9891) = 32590845
(i) The LCM of 9891 and 9885 is associative
LCM of 9885 and 9891 = LCM of 9891 and 9885
1. What is the LCM of 9885 and 9891?
Answer: LCM of 9885 and 9891 is 32590845.
2. What are the Factors of 9885?
Answer: Factors of 9885 are 1, 3, 5, 15, 659, 1977, 3295, 9885. There are 8 integers that are factors of 9885. The greatest factor of 9885 is 9885.
3. What are the Factors of 9891?
Answer: Factors of 9891 are 1, 3, 7, 9, 21, 63, 157, 471, 1099, 1413, 3297, 9891. There are 12 integers that are factors of 9891. The greatest factor of 9891 is 9891.
4. How to Find the LCM of 9885 and 9891?
Answer:
Least Common Multiple of 9885 and 9891 = 32590845
Step 1: Find the prime factorization of 9885
9885 = 3 x 5 x 659
Step 2: Find the prime factorization of 9891
9891 = 3 x 3 x 7 x 157
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 32590845 = 3 x 3 x 5 x 7 x 157 x 659
Step 4: Therefore, the least common multiple of 9885 and 9891 is 32590845.