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 899 the smallest integer that is 801009 that is divisible by both numbers.
Least Common Multiple (LCM) of 891 and 899 is 801009.
LCM(891,899) = 801009
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 899. First we will calculate the prime factors of 891 and 899.
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 899
29 | 899 |
31 | 31 |
1 |
Prime factors of 899 are 29,31. Prime factorization of 899 in exponential form is:
899 = 291×311
Now multiplying the highest exponent prime factors to calculate the LCM of 891 and 899.
LCM(891,899) = 34×111×291×311
LCM(891,899) = 801009
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 899
List of positive integer factors of 899 that divides 899 without a remainder.
1, 29, 31, 899
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 891 and 899, than apply into the LCM equation.
GCF(891,899) = 1
LCM(891,899) = ( 891 × 899) / 1
LCM(891,899) = 801009 / 1
LCM(891,899) = 801009
(i) The LCM of 899 and 891 is associative
LCM of 891 and 899 = LCM of 899 and 891
1. What is the LCM of 891 and 899?
Answer: LCM of 891 and 899 is 801009.
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 899?
Answer: Factors of 899 are 1, 29, 31, 899. There are 4 integers that are factors of 899. The greatest factor of 899 is 899.
4. How to Find the LCM of 891 and 899?
Answer:
Least Common Multiple of 891 and 899 = 801009
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 899
899 = 29 x 31
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 801009 = 3 x 3 x 3 x 3 x 11 x 29 x 31
Step 4: Therefore, the least common multiple of 891 and 899 is 801009.