Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7996 and 8000 the smallest integer that is 15992000 that is divisible by both numbers.
Least Common Multiple (LCM) of 7996 and 8000 is 15992000.
LCM(7996,8000) = 15992000
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 7996 and 8000. First we will calculate the prime factors of 7996 and 8000.
Prime Factorization of 7996
2 | 7996 |
2 | 3998 |
1999 | 1999 |
1 |
Prime factors of 7996 are 2,1999. Prime factorization of 7996 in exponential form is:
7996 = 22×19991
Prime Factorization of 8000
2 | 8000 |
2 | 4000 |
2 | 2000 |
2 | 1000 |
2 | 500 |
2 | 250 |
5 | 125 |
5 | 25 |
5 | 5 |
1 |
Prime factors of 8000 are 2,5. Prime factorization of 8000 in exponential form is:
8000 = 26×53
Now multiplying the highest exponent prime factors to calculate the LCM of 7996 and 8000.
LCM(7996,8000) = 26×53×19991
LCM(7996,8000) = 15992000
Factors of 7996
List of positive integer factors of 7996 that divides 7996 without a remainder.
1, 2, 4, 1999, 3998, 7996
Factors of 8000
List of positive integer factors of 8000 that divides 8000 without a remainder.
1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 800, 1000, 1600, 2000, 4000, 8000
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7996 and 8000, than apply into the LCM equation.
GCF(7996,8000) = 4
LCM(7996,8000) = ( 7996 × 8000) / 4
LCM(7996,8000) = 63968000 / 4
LCM(7996,8000) = 15992000
(i) The LCM of 8000 and 7996 is associative
LCM of 7996 and 8000 = LCM of 8000 and 7996
1. What is the LCM of 7996 and 8000?
Answer: LCM of 7996 and 8000 is 15992000.
2. What are the Factors of 7996?
Answer: Factors of 7996 are 1, 2, 4, 1999, 3998, 7996. There are 6 integers that are factors of 7996. The greatest factor of 7996 is 7996.
3. What are the Factors of 8000?
Answer: Factors of 8000 are 1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 800, 1000, 1600, 2000, 4000, 8000. There are 28 integers that are factors of 8000. The greatest factor of 8000 is 8000.
4. How to Find the LCM of 7996 and 8000?
Answer:
Least Common Multiple of 7996 and 8000 = 15992000
Step 1: Find the prime factorization of 7996
7996 = 2 x 2 x 1999
Step 2: Find the prime factorization of 8000
8000 = 2 x 2 x 2 x 2 x 2 x 2 x 5 x 5 x 5
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 15992000 = 2 x 2 x 2 x 2 x 2 x 2 x 5 x 5 x 5 x 1999
Step 4: Therefore, the least common multiple of 7996 and 8000 is 15992000.