Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 9975 and 9978 the smallest integer that is 33176850 that is divisible by both numbers.
Least Common Multiple (LCM) of 9975 and 9978 is 33176850.
LCM(9975,9978) = 33176850
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 9975 and 9978. First we will calculate the prime factors of 9975 and 9978.
Prime Factorization of 9975
3 | 9975 |
5 | 3325 |
5 | 665 |
7 | 133 |
19 | 19 |
1 |
Prime factors of 9975 are 3, 5, 7,19. Prime factorization of 9975 in exponential form is:
9975 = 31×52×71×191
Prime Factorization of 9978
2 | 9978 |
3 | 4989 |
1663 | 1663 |
1 |
Prime factors of 9978 are 2, 3,1663. Prime factorization of 9978 in exponential form is:
9978 = 21×31×16631
Now multiplying the highest exponent prime factors to calculate the LCM of 9975 and 9978.
LCM(9975,9978) = 21×31×52×71×191×16631
LCM(9975,9978) = 33176850
Factors of 9975
List of positive integer factors of 9975 that divides 9975 without a remainder.
1, 3, 5, 7, 15, 19, 21, 25, 35, 57, 75, 95, 105, 133, 175, 285, 399, 475, 525, 665, 1425, 1995, 3325, 9975
Factors of 9978
List of positive integer factors of 9978 that divides 9978 without a remainder.
1, 2, 3, 6, 1663, 3326, 4989, 9978
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9975 and 9978, than apply into the LCM equation.
GCF(9975,9978) = 3
LCM(9975,9978) = ( 9975 × 9978) / 3
LCM(9975,9978) = 99530550 / 3
LCM(9975,9978) = 33176850
(i) The LCM of 9978 and 9975 is associative
LCM of 9975 and 9978 = LCM of 9978 and 9975
1. What is the LCM of 9975 and 9978?
Answer: LCM of 9975 and 9978 is 33176850.
2. What are the Factors of 9975?
Answer: Factors of 9975 are 1, 3, 5, 7, 15, 19, 21, 25, 35, 57, 75, 95, 105, 133, 175, 285, 399, 475, 525, 665, 1425, 1995, 3325, 9975. There are 24 integers that are factors of 9975. The greatest factor of 9975 is 9975.
3. What are the Factors of 9978?
Answer: Factors of 9978 are 1, 2, 3, 6, 1663, 3326, 4989, 9978. There are 8 integers that are factors of 9978. The greatest factor of 9978 is 9978.
4. How to Find the LCM of 9975 and 9978?
Answer:
Least Common Multiple of 9975 and 9978 = 33176850
Step 1: Find the prime factorization of 9975
9975 = 3 x 5 x 5 x 7 x 19
Step 2: Find the prime factorization of 9978
9978 = 2 x 3 x 1663
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 33176850 = 2 x 3 x 5 x 5 x 7 x 19 x 1663
Step 4: Therefore, the least common multiple of 9975 and 9978 is 33176850.