Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7870 and 7876 the smallest integer that is 30992060 that is divisible by both numbers.
Least Common Multiple (LCM) of 7870 and 7876 is 30992060.
LCM(7870,7876) = 30992060
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 7870 and 7876. First we will calculate the prime factors of 7870 and 7876.
Prime Factorization of 7870
2 | 7870 |
5 | 3935 |
787 | 787 |
1 |
Prime factors of 7870 are 2, 5,787. Prime factorization of 7870 in exponential form is:
7870 = 21×51×7871
Prime Factorization of 7876
2 | 7876 |
2 | 3938 |
11 | 1969 |
179 | 179 |
1 |
Prime factors of 7876 are 2, 11,179. Prime factorization of 7876 in exponential form is:
7876 = 22×111×1791
Now multiplying the highest exponent prime factors to calculate the LCM of 7870 and 7876.
LCM(7870,7876) = 22×51×111×1791×7871
LCM(7870,7876) = 30992060
Factors of 7870
List of positive integer factors of 7870 that divides 7870 without a remainder.
1, 2, 5, 10, 787, 1574, 3935, 7870
Factors of 7876
List of positive integer factors of 7876 that divides 7876 without a remainder.
1, 2, 4, 11, 22, 44, 179, 358, 716, 1969, 3938, 7876
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7870 and 7876, than apply into the LCM equation.
GCF(7870,7876) = 2
LCM(7870,7876) = ( 7870 × 7876) / 2
LCM(7870,7876) = 61984120 / 2
LCM(7870,7876) = 30992060
(i) The LCM of 7876 and 7870 is associative
LCM of 7870 and 7876 = LCM of 7876 and 7870
1. What is the LCM of 7870 and 7876?
Answer: LCM of 7870 and 7876 is 30992060.
2. What are the Factors of 7870?
Answer: Factors of 7870 are 1, 2, 5, 10, 787, 1574, 3935, 7870. There are 8 integers that are factors of 7870. The greatest factor of 7870 is 7870.
3. What are the Factors of 7876?
Answer: Factors of 7876 are 1, 2, 4, 11, 22, 44, 179, 358, 716, 1969, 3938, 7876. There are 12 integers that are factors of 7876. The greatest factor of 7876 is 7876.
4. How to Find the LCM of 7870 and 7876?
Answer:
Least Common Multiple of 7870 and 7876 = 30992060
Step 1: Find the prime factorization of 7870
7870 = 2 x 5 x 787
Step 2: Find the prime factorization of 7876
7876 = 2 x 2 x 11 x 179
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 30992060 = 2 x 2 x 5 x 11 x 179 x 787
Step 4: Therefore, the least common multiple of 7870 and 7876 is 30992060.