Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7875 and 7881 the smallest integer that is 20687625 that is divisible by both numbers.
Least Common Multiple (LCM) of 7875 and 7881 is 20687625.
LCM(7875,7881) = 20687625
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 7875 and 7881. First we will calculate the prime factors of 7875 and 7881.
Prime Factorization of 7875
3 | 7875 |
3 | 2625 |
5 | 875 |
5 | 175 |
5 | 35 |
7 | 7 |
1 |
Prime factors of 7875 are 3, 5,7. Prime factorization of 7875 in exponential form is:
7875 = 32×53×71
Prime Factorization of 7881
3 | 7881 |
37 | 2627 |
71 | 71 |
1 |
Prime factors of 7881 are 3, 37,71. Prime factorization of 7881 in exponential form is:
7881 = 31×371×711
Now multiplying the highest exponent prime factors to calculate the LCM of 7875 and 7881.
LCM(7875,7881) = 32×53×71×371×711
LCM(7875,7881) = 20687625
Factors of 7875
List of positive integer factors of 7875 that divides 7875 without a remainder.
1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 125, 175, 225, 315, 375, 525, 875, 1125, 1575, 2625, 7875
Factors of 7881
List of positive integer factors of 7881 that divides 7881 without a remainder.
1, 3, 37, 71, 111, 213, 2627, 7881
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7875 and 7881, than apply into the LCM equation.
GCF(7875,7881) = 3
LCM(7875,7881) = ( 7875 × 7881) / 3
LCM(7875,7881) = 62062875 / 3
LCM(7875,7881) = 20687625
(i) The LCM of 7881 and 7875 is associative
LCM of 7875 and 7881 = LCM of 7881 and 7875
1. What is the LCM of 7875 and 7881?
Answer: LCM of 7875 and 7881 is 20687625.
2. What are the Factors of 7875?
Answer: Factors of 7875 are 1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 125, 175, 225, 315, 375, 525, 875, 1125, 1575, 2625, 7875. There are 24 integers that are factors of 7875. The greatest factor of 7875 is 7875.
3. What are the Factors of 7881?
Answer: Factors of 7881 are 1, 3, 37, 71, 111, 213, 2627, 7881. There are 8 integers that are factors of 7881. The greatest factor of 7881 is 7881.
4. How to Find the LCM of 7875 and 7881?
Answer:
Least Common Multiple of 7875 and 7881 = 20687625
Step 1: Find the prime factorization of 7875
7875 = 3 x 3 x 5 x 5 x 5 x 7
Step 2: Find the prime factorization of 7881
7881 = 3 x 37 x 71
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 20687625 = 3 x 3 x 5 x 5 x 5 x 7 x 37 x 71
Step 4: Therefore, the least common multiple of 7875 and 7881 is 20687625.