Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 891 and 892 the smallest integer that is 794772 that is divisible by both numbers.
Least Common Multiple (LCM) of 891 and 892 is 794772.
LCM(891,892) = 794772
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 891 and 892. First we will calculate the prime factors of 891 and 892.
Prime Factorization of 891
3 | 891 |
3 | 297 |
3 | 99 |
3 | 33 |
11 | 11 |
1 |
Prime factors of 891 are 3,11. Prime factorization of 891 in exponential form is:
891 = 34×111
Prime Factorization of 892
2 | 892 |
2 | 446 |
223 | 223 |
1 |
Prime factors of 892 are 2,223. Prime factorization of 892 in exponential form is:
892 = 22×2231
Now multiplying the highest exponent prime factors to calculate the LCM of 891 and 892.
LCM(891,892) = 22×34×111×2231
LCM(891,892) = 794772
Factors of 891
List of positive integer factors of 891 that divides 891 without a remainder.
1, 3, 9, 11, 27, 33, 81, 99, 297, 891
Factors of 892
List of positive integer factors of 892 that divides 892 without a remainder.
1, 2, 4, 223, 446, 892
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 891 and 892, than apply into the LCM equation.
GCF(891,892) = 1
LCM(891,892) = ( 891 × 892) / 1
LCM(891,892) = 794772 / 1
LCM(891,892) = 794772
(i) The LCM of 892 and 891 is associative
LCM of 891 and 892 = LCM of 892 and 891
1. What is the LCM of 891 and 892?
Answer: LCM of 891 and 892 is 794772.
2. What are the Factors of 891?
Answer: Factors of 891 are 1, 3, 9, 11, 27, 33, 81, 99, 297, 891. There are 10 integers that are factors of 891. The greatest factor of 891 is 891.
3. What are the Factors of 892?
Answer: Factors of 892 are 1, 2, 4, 223, 446, 892. There are 6 integers that are factors of 892. The greatest factor of 892 is 892.
4. How to Find the LCM of 891 and 892?
Answer:
Least Common Multiple of 891 and 892 = 794772
Step 1: Find the prime factorization of 891
891 = 3 x 3 x 3 x 3 x 11
Step 2: Find the prime factorization of 892
892 = 2 x 2 x 223
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 794772 = 2 x 2 x 3 x 3 x 3 x 3 x 11 x 223
Step 4: Therefore, the least common multiple of 891 and 892 is 794772.