Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 844 and 845 the smallest integer that is 713180 that is divisible by both numbers.
Least Common Multiple (LCM) of 844 and 845 is 713180.
LCM(844,845) = 713180
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 844 and 845. First we will calculate the prime factors of 844 and 845.
Prime Factorization of 844
2 | 844 |
2 | 422 |
211 | 211 |
1 |
Prime factors of 844 are 2,211. Prime factorization of 844 in exponential form is:
844 = 22×2111
Prime Factorization of 845
5 | 845 |
13 | 169 |
13 | 13 |
1 |
Prime factors of 845 are 5,13. Prime factorization of 845 in exponential form is:
845 = 51×132
Now multiplying the highest exponent prime factors to calculate the LCM of 844 and 845.
LCM(844,845) = 22×51×132×2111
LCM(844,845) = 713180
Factors of 844
List of positive integer factors of 844 that divides 844 without a remainder.
1, 2, 4, 211, 422, 844
Factors of 845
List of positive integer factors of 845 that divides 845 without a remainder.
1, 5, 13, 65, 169, 845
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 844 and 845, than apply into the LCM equation.
GCF(844,845) = 1
LCM(844,845) = ( 844 × 845) / 1
LCM(844,845) = 713180 / 1
LCM(844,845) = 713180
(i) The LCM of 845 and 844 is associative
LCM of 844 and 845 = LCM of 845 and 844
1. What is the LCM of 844 and 845?
Answer: LCM of 844 and 845 is 713180.
2. What are the Factors of 844?
Answer: Factors of 844 are 1, 2, 4, 211, 422, 844. There are 6 integers that are factors of 844. The greatest factor of 844 is 844.
3. What are the Factors of 845?
Answer: Factors of 845 are 1, 5, 13, 65, 169, 845. There are 6 integers that are factors of 845. The greatest factor of 845 is 845.
4. How to Find the LCM of 844 and 845?
Answer:
Least Common Multiple of 844 and 845 = 713180
Step 1: Find the prime factorization of 844
844 = 2 x 2 x 211
Step 2: Find the prime factorization of 845
845 = 5 x 13 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 = 713180 = 2 x 2 x 5 x 13 x 13 x 211
Step 4: Therefore, the least common multiple of 844 and 845 is 713180.