Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 8905 and 8911 the smallest integer that is 79352455 that is divisible by both numbers.
Least Common Multiple (LCM) of 8905 and 8911 is 79352455.
LCM(8905,8911) = 79352455
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 8905 and 8911. First we will calculate the prime factors of 8905 and 8911.
Prime Factorization of 8905
5 | 8905 |
13 | 1781 |
137 | 137 |
1 |
Prime factors of 8905 are 5, 13,137. Prime factorization of 8905 in exponential form is:
8905 = 51×131×1371
Prime Factorization of 8911
7 | 8911 |
19 | 1273 |
67 | 67 |
1 |
Prime factors of 8911 are 7, 19,67. Prime factorization of 8911 in exponential form is:
8911 = 71×191×671
Now multiplying the highest exponent prime factors to calculate the LCM of 8905 and 8911.
LCM(8905,8911) = 51×71×131×191×671×1371
LCM(8905,8911) = 79352455
Factors of 8905
List of positive integer factors of 8905 that divides 8905 without a remainder.
1, 5, 13, 65, 137, 685, 1781, 8905
Factors of 8911
List of positive integer factors of 8911 that divides 8911 without a remainder.
1, 7, 19, 67, 133, 469, 1273, 8911
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8905 and 8911, than apply into the LCM equation.
GCF(8905,8911) = 1
LCM(8905,8911) = ( 8905 × 8911) / 1
LCM(8905,8911) = 79352455 / 1
LCM(8905,8911) = 79352455
(i) The LCM of 8911 and 8905 is associative
LCM of 8905 and 8911 = LCM of 8911 and 8905
1. What is the LCM of 8905 and 8911?
Answer: LCM of 8905 and 8911 is 79352455.
2. What are the Factors of 8905?
Answer: Factors of 8905 are 1, 5, 13, 65, 137, 685, 1781, 8905. There are 8 integers that are factors of 8905. The greatest factor of 8905 is 8905.
3. What are the Factors of 8911?
Answer: Factors of 8911 are 1, 7, 19, 67, 133, 469, 1273, 8911. There are 8 integers that are factors of 8911. The greatest factor of 8911 is 8911.
4. How to Find the LCM of 8905 and 8911?
Answer:
Least Common Multiple of 8905 and 8911 = 79352455
Step 1: Find the prime factorization of 8905
8905 = 5 x 13 x 137
Step 2: Find the prime factorization of 8911
8911 = 7 x 19 x 67
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 79352455 = 5 x 7 x 13 x 19 x 67 x 137
Step 4: Therefore, the least common multiple of 8905 and 8911 is 79352455.