Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 812 and 819 the smallest integer that is 95004 that is divisible by both numbers.
Least Common Multiple (LCM) of 812 and 819 is 95004.
LCM(812,819) = 95004
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 812 and 819. First we will calculate the prime factors of 812 and 819.
Prime Factorization of 812
2 | 812 |
2 | 406 |
7 | 203 |
29 | 29 |
1 |
Prime factors of 812 are 2, 7,29. Prime factorization of 812 in exponential form is:
812 = 22×71×291
Prime Factorization of 819
3 | 819 |
3 | 273 |
7 | 91 |
13 | 13 |
1 |
Prime factors of 819 are 3, 7,13. Prime factorization of 819 in exponential form is:
819 = 32×71×131
Now multiplying the highest exponent prime factors to calculate the LCM of 812 and 819.
LCM(812,819) = 22×32×71×131×291
LCM(812,819) = 95004
Factors of 812
List of positive integer factors of 812 that divides 812 without a remainder.
1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812
Factors of 819
List of positive integer factors of 819 that divides 819 without a remainder.
1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 812 and 819, than apply into the LCM equation.
GCF(812,819) = 7
LCM(812,819) = ( 812 × 819) / 7
LCM(812,819) = 665028 / 7
LCM(812,819) = 95004
(i) The LCM of 819 and 812 is associative
LCM of 812 and 819 = LCM of 819 and 812
1. What is the LCM of 812 and 819?
Answer: LCM of 812 and 819 is 95004.
2. What are the Factors of 812?
Answer: Factors of 812 are 1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812. There are 12 integers that are factors of 812. The greatest factor of 812 is 812.
3. What are the Factors of 819?
Answer: Factors of 819 are 1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819. There are 12 integers that are factors of 819. The greatest factor of 819 is 819.
4. How to Find the LCM of 812 and 819?
Answer:
Least Common Multiple of 812 and 819 = 95004
Step 1: Find the prime factorization of 812
812 = 2 x 2 x 7 x 29
Step 2: Find the prime factorization of 819
819 = 3 x 3 x 7 x 13
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 95004 = 2 x 2 x 3 x 3 x 7 x 13 x 29
Step 4: Therefore, the least common multiple of 812 and 819 is 95004.