Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 905 and 912 the smallest integer that is 825360 that is divisible by both numbers.
Least Common Multiple (LCM) of 905 and 912 is 825360.
LCM(905,912) = 825360
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 905 and 912. First we will calculate the prime factors of 905 and 912.
Prime Factorization of 905
5 | 905 |
181 | 181 |
1 |
Prime factors of 905 are 5,181. Prime factorization of 905 in exponential form is:
905 = 51×1811
Prime Factorization of 912
2 | 912 |
2 | 456 |
2 | 228 |
2 | 114 |
3 | 57 |
19 | 19 |
1 |
Prime factors of 912 are 2, 3,19. Prime factorization of 912 in exponential form is:
912 = 24×31×191
Now multiplying the highest exponent prime factors to calculate the LCM of 905 and 912.
LCM(905,912) = 24×31×51×191×1811
LCM(905,912) = 825360
Factors of 905
List of positive integer factors of 905 that divides 905 without a remainder.
1, 5, 181, 905
Factors of 912
List of positive integer factors of 912 that divides 912 without a remainder.
1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 114, 152, 228, 304, 456, 912
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 905 and 912, than apply into the LCM equation.
GCF(905,912) = 1
LCM(905,912) = ( 905 × 912) / 1
LCM(905,912) = 825360 / 1
LCM(905,912) = 825360
(i) The LCM of 912 and 905 is associative
LCM of 905 and 912 = LCM of 912 and 905
1. What is the LCM of 905 and 912?
Answer: LCM of 905 and 912 is 825360.
2. What are the Factors of 905?
Answer: Factors of 905 are 1, 5, 181, 905. There are 4 integers that are factors of 905. The greatest factor of 905 is 905.
3. What are the Factors of 912?
Answer: Factors of 912 are 1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 114, 152, 228, 304, 456, 912. There are 20 integers that are factors of 912. The greatest factor of 912 is 912.
4. How to Find the LCM of 905 and 912?
Answer:
Least Common Multiple of 905 and 912 = 825360
Step 1: Find the prime factorization of 905
905 = 5 x 181
Step 2: Find the prime factorization of 912
912 = 2 x 2 x 2 x 2 x 3 x 19
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 825360 = 2 x 2 x 2 x 2 x 3 x 5 x 19 x 181
Step 4: Therefore, the least common multiple of 905 and 912 is 825360.