Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 9721 and 9728 the smallest integer that is 94565888 that is divisible by both numbers.
Least Common Multiple (LCM) of 9721 and 9728 is 94565888.
LCM(9721,9728) = 94565888
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 9721 and 9728. First we will calculate the prime factors of 9721 and 9728.
Prime Factorization of 9721
9721 | 9721 |
1 |
Prime factors of 9721 are 9721. Prime factorization of 9721 in exponential form is:
9721 = 97211
Prime Factorization of 9728
2 | 9728 |
2 | 4864 |
2 | 2432 |
2 | 1216 |
2 | 608 |
2 | 304 |
2 | 152 |
2 | 76 |
2 | 38 |
19 | 19 |
1 |
Prime factors of 9728 are 2,19. Prime factorization of 9728 in exponential form is:
9728 = 29×191
Now multiplying the highest exponent prime factors to calculate the LCM of 9721 and 9728.
LCM(9721,9728) = 29×191×97211
LCM(9721,9728) = 94565888
Factors of 9721
List of positive integer factors of 9721 that divides 9721 without a remainder.
1, 9721
Factors of 9728
List of positive integer factors of 9728 that divides 9728 without a remainder.
1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 512, 608, 1216, 2432, 4864, 9728
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9721 and 9728, than apply into the LCM equation.
GCF(9721,9728) = 1
LCM(9721,9728) = ( 9721 × 9728) / 1
LCM(9721,9728) = 94565888 / 1
LCM(9721,9728) = 94565888
(i) The LCM of 9728 and 9721 is associative
LCM of 9721 and 9728 = LCM of 9728 and 9721
1. What is the LCM of 9721 and 9728?
Answer: LCM of 9721 and 9728 is 94565888.
2. What are the Factors of 9721?
Answer: Factors of 9721 are 1, 9721. There are 2 integers that are factors of 9721. The greatest factor of 9721 is 9721.
3. What are the Factors of 9728?
Answer: Factors of 9728 are 1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 512, 608, 1216, 2432, 4864, 9728. There are 20 integers that are factors of 9728. The greatest factor of 9728 is 9728.
4. How to Find the LCM of 9721 and 9728?
Answer:
Least Common Multiple of 9721 and 9728 = 94565888
Step 1: Find the prime factorization of 9721
9721 = 9721
Step 2: Find the prime factorization of 9728
9728 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 19
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 94565888 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 19 x 9721
Step 4: Therefore, the least common multiple of 9721 and 9728 is 94565888.