Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 9865 and 9870 the smallest integer that is 19473510 that is divisible by both numbers.
Least Common Multiple (LCM) of 9865 and 9870 is 19473510.
LCM(9865,9870) = 19473510
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 9865 and 9870. First we will calculate the prime factors of 9865 and 9870.
Prime Factorization of 9865
5 | 9865 |
1973 | 1973 |
1 |
Prime factors of 9865 are 5,1973. Prime factorization of 9865 in exponential form is:
9865 = 51×19731
Prime Factorization of 9870
2 | 9870 |
3 | 4935 |
5 | 1645 |
7 | 329 |
47 | 47 |
1 |
Prime factors of 9870 are 2, 3, 5, 7,47. Prime factorization of 9870 in exponential form is:
9870 = 21×31×51×71×471
Now multiplying the highest exponent prime factors to calculate the LCM of 9865 and 9870.
LCM(9865,9870) = 21×31×51×71×471×19731
LCM(9865,9870) = 19473510
Factors of 9865
List of positive integer factors of 9865 that divides 9865 without a remainder.
1, 5, 1973, 9865
Factors of 9870
List of positive integer factors of 9870 that divides 9870 without a remainder.
1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 47, 70, 94, 105, 141, 210, 235, 282, 329, 470, 658, 705, 987, 1410, 1645, 1974, 3290, 4935, 9870
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9865 and 9870, than apply into the LCM equation.
GCF(9865,9870) = 5
LCM(9865,9870) = ( 9865 × 9870) / 5
LCM(9865,9870) = 97367550 / 5
LCM(9865,9870) = 19473510
(i) The LCM of 9870 and 9865 is associative
LCM of 9865 and 9870 = LCM of 9870 and 9865
1. What is the LCM of 9865 and 9870?
Answer: LCM of 9865 and 9870 is 19473510.
2. What are the Factors of 9865?
Answer: Factors of 9865 are 1, 5, 1973, 9865. There are 4 integers that are factors of 9865. The greatest factor of 9865 is 9865.
3. What are the Factors of 9870?
Answer: Factors of 9870 are 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 47, 70, 94, 105, 141, 210, 235, 282, 329, 470, 658, 705, 987, 1410, 1645, 1974, 3290, 4935, 9870. There are 32 integers that are factors of 9870. The greatest factor of 9870 is 9870.
4. How to Find the LCM of 9865 and 9870?
Answer:
Least Common Multiple of 9865 and 9870 = 19473510
Step 1: Find the prime factorization of 9865
9865 = 5 x 1973
Step 2: Find the prime factorization of 9870
9870 = 2 x 3 x 5 x 7 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 = 19473510 = 2 x 3 x 5 x 7 x 47 x 1973
Step 4: Therefore, the least common multiple of 9865 and 9870 is 19473510.