Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 9800 and 9805 the smallest integer that is 19217800 that is divisible by both numbers.
Least Common Multiple (LCM) of 9800 and 9805 is 19217800.
LCM(9800,9805) = 19217800
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 9800 and 9805. First we will calculate the prime factors of 9800 and 9805.
Prime Factorization of 9800
2 | 9800 |
2 | 4900 |
2 | 2450 |
5 | 1225 |
5 | 245 |
7 | 49 |
7 | 7 |
1 |
Prime factors of 9800 are 2, 5,7. Prime factorization of 9800 in exponential form is:
9800 = 23×52×72
Prime Factorization of 9805
5 | 9805 |
37 | 1961 |
53 | 53 |
1 |
Prime factors of 9805 are 5, 37,53. Prime factorization of 9805 in exponential form is:
9805 = 51×371×531
Now multiplying the highest exponent prime factors to calculate the LCM of 9800 and 9805.
LCM(9800,9805) = 23×52×72×371×531
LCM(9800,9805) = 19217800
Factors of 9800
List of positive integer factors of 9800 that divides 9800 without a remainder.
1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 280, 350, 392, 490, 700, 980, 1225, 1400, 1960, 2450, 4900, 9800
Factors of 9805
List of positive integer factors of 9805 that divides 9805 without a remainder.
1, 5, 37, 53, 185, 265, 1961, 9805
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9800 and 9805, than apply into the LCM equation.
GCF(9800,9805) = 5
LCM(9800,9805) = ( 9800 × 9805) / 5
LCM(9800,9805) = 96089000 / 5
LCM(9800,9805) = 19217800
(i) The LCM of 9805 and 9800 is associative
LCM of 9800 and 9805 = LCM of 9805 and 9800
1. What is the LCM of 9800 and 9805?
Answer: LCM of 9800 and 9805 is 19217800.
2. What are the Factors of 9800?
Answer: Factors of 9800 are 1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 280, 350, 392, 490, 700, 980, 1225, 1400, 1960, 2450, 4900, 9800. There are 36 integers that are factors of 9800. The greatest factor of 9800 is 9800.
3. What are the Factors of 9805?
Answer: Factors of 9805 are 1, 5, 37, 53, 185, 265, 1961, 9805. There are 8 integers that are factors of 9805. The greatest factor of 9805 is 9805.
4. How to Find the LCM of 9800 and 9805?
Answer:
Least Common Multiple of 9800 and 9805 = 19217800
Step 1: Find the prime factorization of 9800
9800 = 2 x 2 x 2 x 5 x 5 x 7 x 7
Step 2: Find the prime factorization of 9805
9805 = 5 x 37 x 53
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 19217800 = 2 x 2 x 2 x 5 x 5 x 7 x 7 x 37 x 53
Step 4: Therefore, the least common multiple of 9800 and 9805 is 19217800.