Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 2813 and 2820 the smallest integer that is 7932660 that is divisible by both numbers.
Least Common Multiple (LCM) of 2813 and 2820 is 7932660.
LCM(2813,2820) = 7932660
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 2813 and 2820. First we will calculate the prime factors of 2813 and 2820.
Prime Factorization of 2813
29 | 2813 |
97 | 97 |
1 |
Prime factors of 2813 are 29,97. Prime factorization of 2813 in exponential form is:
2813 = 291×971
Prime Factorization of 2820
2 | 2820 |
2 | 1410 |
3 | 705 |
5 | 235 |
47 | 47 |
1 |
Prime factors of 2820 are 2, 3, 5,47. Prime factorization of 2820 in exponential form is:
2820 = 22×31×51×471
Now multiplying the highest exponent prime factors to calculate the LCM of 2813 and 2820.
LCM(2813,2820) = 22×31×51×291×471×971
LCM(2813,2820) = 7932660
Factors of 2813
List of positive integer factors of 2813 that divides 2813 without a remainder.
1, 29, 97, 2813
Factors of 2820
List of positive integer factors of 2820 that divides 2820 without a remainder.
1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 141, 188, 235, 282, 470, 564, 705, 940, 1410, 2820
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2813 and 2820, than apply into the LCM equation.
GCF(2813,2820) = 1
LCM(2813,2820) = ( 2813 × 2820) / 1
LCM(2813,2820) = 7932660 / 1
LCM(2813,2820) = 7932660
(i) The LCM of 2820 and 2813 is associative
LCM of 2813 and 2820 = LCM of 2820 and 2813
1. What is the LCM of 2813 and 2820?
Answer: LCM of 2813 and 2820 is 7932660.
2. What are the Factors of 2813?
Answer: Factors of 2813 are 1, 29, 97, 2813. There are 4 integers that are factors of 2813. The greatest factor of 2813 is 2813.
3. What are the Factors of 2820?
Answer: Factors of 2820 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 141, 188, 235, 282, 470, 564, 705, 940, 1410, 2820. There are 24 integers that are factors of 2820. The greatest factor of 2820 is 2820.
4. How to Find the LCM of 2813 and 2820?
Answer:
Least Common Multiple of 2813 and 2820 = 7932660
Step 1: Find the prime factorization of 2813
2813 = 29 x 97
Step 2: Find the prime factorization of 2820
2820 = 2 x 2 x 3 x 5 x 47
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 7932660 = 2 x 2 x 3 x 5 x 29 x 47 x 97
Step 4: Therefore, the least common multiple of 2813 and 2820 is 7932660.