Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 9905 and 9911 the smallest integer that is 98168455 that is divisible by both numbers.
Least Common Multiple (LCM) of 9905 and 9911 is 98168455.
LCM(9905,9911) = 98168455
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 9905 and 9911. First we will calculate the prime factors of 9905 and 9911.
Prime Factorization of 9905
5 | 9905 |
7 | 1981 |
283 | 283 |
1 |
Prime factors of 9905 are 5, 7,283. Prime factorization of 9905 in exponential form is:
9905 = 51×71×2831
Prime Factorization of 9911
11 | 9911 |
17 | 901 |
53 | 53 |
1 |
Prime factors of 9911 are 11, 17,53. Prime factorization of 9911 in exponential form is:
9911 = 111×171×531
Now multiplying the highest exponent prime factors to calculate the LCM of 9905 and 9911.
LCM(9905,9911) = 51×71×111×171×531×2831
LCM(9905,9911) = 98168455
Factors of 9905
List of positive integer factors of 9905 that divides 9905 without a remainder.
1, 5, 7, 35, 283, 1415, 1981, 9905
Factors of 9911
List of positive integer factors of 9911 that divides 9911 without a remainder.
1, 11, 17, 53, 187, 583, 901, 9911
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9905 and 9911, than apply into the LCM equation.
GCF(9905,9911) = 1
LCM(9905,9911) = ( 9905 × 9911) / 1
LCM(9905,9911) = 98168455 / 1
LCM(9905,9911) = 98168455
(i) The LCM of 9911 and 9905 is associative
LCM of 9905 and 9911 = LCM of 9911 and 9905
1. What is the LCM of 9905 and 9911?
Answer: LCM of 9905 and 9911 is 98168455.
2. What are the Factors of 9905?
Answer: Factors of 9905 are 1, 5, 7, 35, 283, 1415, 1981, 9905. There are 8 integers that are factors of 9905. The greatest factor of 9905 is 9905.
3. What are the Factors of 9911?
Answer: Factors of 9911 are 1, 11, 17, 53, 187, 583, 901, 9911. There are 8 integers that are factors of 9911. The greatest factor of 9911 is 9911.
4. How to Find the LCM of 9905 and 9911?
Answer:
Least Common Multiple of 9905 and 9911 = 98168455
Step 1: Find the prime factorization of 9905
9905 = 5 x 7 x 283
Step 2: Find the prime factorization of 9911
9911 = 11 x 17 x 53
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 98168455 = 5 x 7 x 11 x 17 x 53 x 283
Step 4: Therefore, the least common multiple of 9905 and 9911 is 98168455.