Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 2891 and 2898 the smallest integer that is 1196874 that is divisible by both numbers.
Least Common Multiple (LCM) of 2891 and 2898 is 1196874.
LCM(2891,2898) = 1196874
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 2891 and 2898. First we will calculate the prime factors of 2891 and 2898.
Prime Factorization of 2891
7 | 2891 |
7 | 413 |
59 | 59 |
1 |
Prime factors of 2891 are 7,59. Prime factorization of 2891 in exponential form is:
2891 = 72×591
Prime Factorization of 2898
2 | 2898 |
3 | 1449 |
3 | 483 |
7 | 161 |
23 | 23 |
1 |
Prime factors of 2898 are 2, 3, 7,23. Prime factorization of 2898 in exponential form is:
2898 = 21×32×71×231
Now multiplying the highest exponent prime factors to calculate the LCM of 2891 and 2898.
LCM(2891,2898) = 21×32×72×231×591
LCM(2891,2898) = 1196874
Factors of 2891
List of positive integer factors of 2891 that divides 2891 without a remainder.
1, 7, 49, 59, 413, 2891
Factors of 2898
List of positive integer factors of 2898 that divides 2898 without a remainder.
1, 2, 3, 6, 7, 9, 14, 18, 21, 23, 42, 46, 63, 69, 126, 138, 161, 207, 322, 414, 483, 966, 1449, 2898
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2891 and 2898, than apply into the LCM equation.
GCF(2891,2898) = 7
LCM(2891,2898) = ( 2891 × 2898) / 7
LCM(2891,2898) = 8378118 / 7
LCM(2891,2898) = 1196874
(i) The LCM of 2898 and 2891 is associative
LCM of 2891 and 2898 = LCM of 2898 and 2891
1. What is the LCM of 2891 and 2898?
Answer: LCM of 2891 and 2898 is 1196874.
2. What are the Factors of 2891?
Answer: Factors of 2891 are 1, 7, 49, 59, 413, 2891. There are 6 integers that are factors of 2891. The greatest factor of 2891 is 2891.
3. What are the Factors of 2898?
Answer: Factors of 2898 are 1, 2, 3, 6, 7, 9, 14, 18, 21, 23, 42, 46, 63, 69, 126, 138, 161, 207, 322, 414, 483, 966, 1449, 2898. There are 24 integers that are factors of 2898. The greatest factor of 2898 is 2898.
4. How to Find the LCM of 2891 and 2898?
Answer:
Least Common Multiple of 2891 and 2898 = 1196874
Step 1: Find the prime factorization of 2891
2891 = 7 x 7 x 59
Step 2: Find the prime factorization of 2898
2898 = 2 x 3 x 3 x 7 x 23
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1196874 = 2 x 3 x 3 x 7 x 7 x 23 x 59
Step 4: Therefore, the least common multiple of 2891 and 2898 is 1196874.