Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 984 and 989 the smallest integer that is 973176 that is divisible by both numbers.
Least Common Multiple (LCM) of 984 and 989 is 973176.
LCM(984,989) = 973176
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 984 and 989. First we will calculate the prime factors of 984 and 989.
Prime Factorization of 984
2 | 984 |
2 | 492 |
2 | 246 |
3 | 123 |
41 | 41 |
1 |
Prime factors of 984 are 2, 3,41. Prime factorization of 984 in exponential form is:
984 = 23×31×411
Prime Factorization of 989
23 | 989 |
43 | 43 |
1 |
Prime factors of 989 are 23,43. Prime factorization of 989 in exponential form is:
989 = 231×431
Now multiplying the highest exponent prime factors to calculate the LCM of 984 and 989.
LCM(984,989) = 23×31×231×411×431
LCM(984,989) = 973176
Factors of 984
List of positive integer factors of 984 that divides 984 without a remainder.
1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 123, 164, 246, 328, 492, 984
Factors of 989
List of positive integer factors of 989 that divides 989 without a remainder.
1, 23, 43, 989
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 984 and 989, than apply into the LCM equation.
GCF(984,989) = 1
LCM(984,989) = ( 984 × 989) / 1
LCM(984,989) = 973176 / 1
LCM(984,989) = 973176
(i) The LCM of 989 and 984 is associative
LCM of 984 and 989 = LCM of 989 and 984
1. What is the LCM of 984 and 989?
Answer: LCM of 984 and 989 is 973176.
2. What are the Factors of 984?
Answer: Factors of 984 are 1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 123, 164, 246, 328, 492, 984. There are 16 integers that are factors of 984. The greatest factor of 984 is 984.
3. What are the Factors of 989?
Answer: Factors of 989 are 1, 23, 43, 989. There are 4 integers that are factors of 989. The greatest factor of 989 is 989.
4. How to Find the LCM of 984 and 989?
Answer:
Least Common Multiple of 984 and 989 = 973176
Step 1: Find the prime factorization of 984
984 = 2 x 2 x 2 x 3 x 41
Step 2: Find the prime factorization of 989
989 = 23 x 43
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 973176 = 2 x 2 x 2 x 3 x 23 x 41 x 43
Step 4: Therefore, the least common multiple of 984 and 989 is 973176.