Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 9840 and 9845 the smallest integer that is 19374960 that is divisible by both numbers.
Least Common Multiple (LCM) of 9840 and 9845 is 19374960.
LCM(9840,9845) = 19374960
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 9840 and 9845. First we will calculate the prime factors of 9840 and 9845.
Prime Factorization of 9840
2 | 9840 |
2 | 4920 |
2 | 2460 |
2 | 1230 |
3 | 615 |
5 | 205 |
41 | 41 |
1 |
Prime factors of 9840 are 2, 3, 5,41. Prime factorization of 9840 in exponential form is:
9840 = 24×31×51×411
Prime Factorization of 9845
5 | 9845 |
11 | 1969 |
179 | 179 |
1 |
Prime factors of 9845 are 5, 11,179. Prime factorization of 9845 in exponential form is:
9845 = 51×111×1791
Now multiplying the highest exponent prime factors to calculate the LCM of 9840 and 9845.
LCM(9840,9845) = 24×31×51×111×411×1791
LCM(9840,9845) = 19374960
Factors of 9840
List of positive integer factors of 9840 that divides 9840 without a remainder.
1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 41, 48, 60, 80, 82, 120, 123, 164, 205, 240, 246, 328, 410, 492, 615, 656, 820, 984, 1230, 1640, 1968, 2460, 3280, 4920, 9840
Factors of 9845
List of positive integer factors of 9845 that divides 9845 without a remainder.
1, 5, 11, 55, 179, 895, 1969, 9845
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9840 and 9845, than apply into the LCM equation.
GCF(9840,9845) = 5
LCM(9840,9845) = ( 9840 × 9845) / 5
LCM(9840,9845) = 96874800 / 5
LCM(9840,9845) = 19374960
(i) The LCM of 9845 and 9840 is associative
LCM of 9840 and 9845 = LCM of 9845 and 9840
1. What is the LCM of 9840 and 9845?
Answer: LCM of 9840 and 9845 is 19374960.
2. What are the Factors of 9840?
Answer: Factors of 9840 are 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 41, 48, 60, 80, 82, 120, 123, 164, 205, 240, 246, 328, 410, 492, 615, 656, 820, 984, 1230, 1640, 1968, 2460, 3280, 4920, 9840. There are 40 integers that are factors of 9840. The greatest factor of 9840 is 9840.
3. What are the Factors of 9845?
Answer: Factors of 9845 are 1, 5, 11, 55, 179, 895, 1969, 9845. There are 8 integers that are factors of 9845. The greatest factor of 9845 is 9845.
4. How to Find the LCM of 9840 and 9845?
Answer:
Least Common Multiple of 9840 and 9845 = 19374960
Step 1: Find the prime factorization of 9840
9840 = 2 x 2 x 2 x 2 x 3 x 5 x 41
Step 2: Find the prime factorization of 9845
9845 = 5 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 = 19374960 = 2 x 2 x 2 x 2 x 3 x 5 x 11 x 41 x 179
Step 4: Therefore, the least common multiple of 9840 and 9845 is 19374960.