Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 2856 and 2861 the smallest integer that is 8171016 that is divisible by both numbers.
Least Common Multiple (LCM) of 2856 and 2861 is 8171016.
LCM(2856,2861) = 8171016
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 2856 and 2861. First we will calculate the prime factors of 2856 and 2861.
Prime Factorization of 2856
2 | 2856 |
2 | 1428 |
2 | 714 |
3 | 357 |
7 | 119 |
17 | 17 |
1 |
Prime factors of 2856 are 2, 3, 7,17. Prime factorization of 2856 in exponential form is:
2856 = 23×31×71×171
Prime Factorization of 2861
2861 | 2861 |
1 |
Prime factors of 2861 are 2861. Prime factorization of 2861 in exponential form is:
2861 = 28611
Now multiplying the highest exponent prime factors to calculate the LCM of 2856 and 2861.
LCM(2856,2861) = 23×31×71×171×28611
LCM(2856,2861) = 8171016
Factors of 2856
List of positive integer factors of 2856 that divides 2856 without a remainder.
1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 51, 56, 68, 84, 102, 119, 136, 168, 204, 238, 357, 408, 476, 714, 952, 1428, 2856
Factors of 2861
List of positive integer factors of 2861 that divides 2861 without a remainder.
1, 2861
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2856 and 2861, than apply into the LCM equation.
GCF(2856,2861) = 1
LCM(2856,2861) = ( 2856 × 2861) / 1
LCM(2856,2861) = 8171016 / 1
LCM(2856,2861) = 8171016
(i) The LCM of 2861 and 2856 is associative
LCM of 2856 and 2861 = LCM of 2861 and 2856
1. What is the LCM of 2856 and 2861?
Answer: LCM of 2856 and 2861 is 8171016.
2. What are the Factors of 2856?
Answer: Factors of 2856 are 1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 51, 56, 68, 84, 102, 119, 136, 168, 204, 238, 357, 408, 476, 714, 952, 1428, 2856. There are 32 integers that are factors of 2856. The greatest factor of 2856 is 2856.
3. What are the Factors of 2861?
Answer: Factors of 2861 are 1, 2861. There are 2 integers that are factors of 2861. The greatest factor of 2861 is 2861.
4. How to Find the LCM of 2856 and 2861?
Answer:
Least Common Multiple of 2856 and 2861 = 8171016
Step 1: Find the prime factorization of 2856
2856 = 2 x 2 x 2 x 3 x 7 x 17
Step 2: Find the prime factorization of 2861
2861 = 2861
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 8171016 = 2 x 2 x 2 x 3 x 7 x 17 x 2861
Step 4: Therefore, the least common multiple of 2856 and 2861 is 8171016.