Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 2865 and 2870 the smallest integer that is 1644510 that is divisible by both numbers.
Least Common Multiple (LCM) of 2865 and 2870 is 1644510.
LCM(2865,2870) = 1644510
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 2865 and 2870. First we will calculate the prime factors of 2865 and 2870.
Prime Factorization of 2865
3 | 2865 |
5 | 955 |
191 | 191 |
1 |
Prime factors of 2865 are 3, 5,191. Prime factorization of 2865 in exponential form is:
2865 = 31×51×1911
Prime Factorization of 2870
2 | 2870 |
5 | 1435 |
7 | 287 |
41 | 41 |
1 |
Prime factors of 2870 are 2, 5, 7,41. Prime factorization of 2870 in exponential form is:
2870 = 21×51×71×411
Now multiplying the highest exponent prime factors to calculate the LCM of 2865 and 2870.
LCM(2865,2870) = 21×31×51×71×411×1911
LCM(2865,2870) = 1644510
Factors of 2865
List of positive integer factors of 2865 that divides 2865 without a remainder.
1, 3, 5, 15, 191, 573, 955, 2865
Factors of 2870
List of positive integer factors of 2870 that divides 2870 without a remainder.
1, 2, 5, 7, 10, 14, 35, 41, 70, 82, 205, 287, 410, 574, 1435, 2870
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2865 and 2870, than apply into the LCM equation.
GCF(2865,2870) = 5
LCM(2865,2870) = ( 2865 × 2870) / 5
LCM(2865,2870) = 8222550 / 5
LCM(2865,2870) = 1644510
(i) The LCM of 2870 and 2865 is associative
LCM of 2865 and 2870 = LCM of 2870 and 2865
1. What is the LCM of 2865 and 2870?
Answer: LCM of 2865 and 2870 is 1644510.
2. What are the Factors of 2865?
Answer: Factors of 2865 are 1, 3, 5, 15, 191, 573, 955, 2865. There are 8 integers that are factors of 2865. The greatest factor of 2865 is 2865.
3. What are the Factors of 2870?
Answer: Factors of 2870 are 1, 2, 5, 7, 10, 14, 35, 41, 70, 82, 205, 287, 410, 574, 1435, 2870. There are 16 integers that are factors of 2870. The greatest factor of 2870 is 2870.
4. How to Find the LCM of 2865 and 2870?
Answer:
Least Common Multiple of 2865 and 2870 = 1644510
Step 1: Find the prime factorization of 2865
2865 = 3 x 5 x 191
Step 2: Find the prime factorization of 2870
2870 = 2 x 5 x 7 x 41
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1644510 = 2 x 3 x 5 x 7 x 41 x 191
Step 4: Therefore, the least common multiple of 2865 and 2870 is 1644510.