Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 2987 and 2991 the smallest integer that is 8934117 that is divisible by both numbers.
Least Common Multiple (LCM) of 2987 and 2991 is 8934117.
LCM(2987,2991) = 8934117
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 2987 and 2991. First we will calculate the prime factors of 2987 and 2991.
Prime Factorization of 2987
29 | 2987 |
103 | 103 |
1 |
Prime factors of 2987 are 29,103. Prime factorization of 2987 in exponential form is:
2987 = 291×1031
Prime Factorization of 2991
3 | 2991 |
997 | 997 |
1 |
Prime factors of 2991 are 3,997. Prime factorization of 2991 in exponential form is:
2991 = 31×9971
Now multiplying the highest exponent prime factors to calculate the LCM of 2987 and 2991.
LCM(2987,2991) = 31×291×1031×9971
LCM(2987,2991) = 8934117
Factors of 2987
List of positive integer factors of 2987 that divides 2987 without a remainder.
1, 29, 103, 2987
Factors of 2991
List of positive integer factors of 2991 that divides 2991 without a remainder.
1, 3, 997, 2991
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2987 and 2991, than apply into the LCM equation.
GCF(2987,2991) = 1
LCM(2987,2991) = ( 2987 × 2991) / 1
LCM(2987,2991) = 8934117 / 1
LCM(2987,2991) = 8934117
(i) The LCM of 2991 and 2987 is associative
LCM of 2987 and 2991 = LCM of 2991 and 2987
1. What is the LCM of 2987 and 2991?
Answer: LCM of 2987 and 2991 is 8934117.
2. What are the Factors of 2987?
Answer: Factors of 2987 are 1, 29, 103, 2987. There are 4 integers that are factors of 2987. The greatest factor of 2987 is 2987.
3. What are the Factors of 2991?
Answer: Factors of 2991 are 1, 3, 997, 2991. There are 4 integers that are factors of 2991. The greatest factor of 2991 is 2991.
4. How to Find the LCM of 2987 and 2991?
Answer:
Least Common Multiple of 2987 and 2991 = 8934117
Step 1: Find the prime factorization of 2987
2987 = 29 x 103
Step 2: Find the prime factorization of 2991
2991 = 3 x 997
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 8934117 = 3 x 29 x 103 x 997
Step 4: Therefore, the least common multiple of 2987 and 2991 is 8934117.