Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 2981 and 2982 the smallest integer that is 8889342 that is divisible by both numbers.
Least Common Multiple (LCM) of 2981 and 2982 is 8889342.
LCM(2981,2982) = 8889342
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 2981 and 2982. First we will calculate the prime factors of 2981 and 2982.
Prime Factorization of 2981
11 | 2981 |
271 | 271 |
1 |
Prime factors of 2981 are 11,271. Prime factorization of 2981 in exponential form is:
2981 = 111×2711
Prime Factorization of 2982
2 | 2982 |
3 | 1491 |
7 | 497 |
71 | 71 |
1 |
Prime factors of 2982 are 2, 3, 7,71. Prime factorization of 2982 in exponential form is:
2982 = 21×31×71×711
Now multiplying the highest exponent prime factors to calculate the LCM of 2981 and 2982.
LCM(2981,2982) = 21×31×71×111×711×2711
LCM(2981,2982) = 8889342
Factors of 2981
List of positive integer factors of 2981 that divides 2981 without a remainder.
1, 11, 271, 2981
Factors of 2982
List of positive integer factors of 2982 that divides 2982 without a remainder.
1, 2, 3, 6, 7, 14, 21, 42, 71, 142, 213, 426, 497, 994, 1491, 2982
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2981 and 2982, than apply into the LCM equation.
GCF(2981,2982) = 1
LCM(2981,2982) = ( 2981 × 2982) / 1
LCM(2981,2982) = 8889342 / 1
LCM(2981,2982) = 8889342
(i) The LCM of 2982 and 2981 is associative
LCM of 2981 and 2982 = LCM of 2982 and 2981
1. What is the LCM of 2981 and 2982?
Answer: LCM of 2981 and 2982 is 8889342.
2. What are the Factors of 2981?
Answer: Factors of 2981 are 1, 11, 271, 2981. There are 4 integers that are factors of 2981. The greatest factor of 2981 is 2981.
3. What are the Factors of 2982?
Answer: Factors of 2982 are 1, 2, 3, 6, 7, 14, 21, 42, 71, 142, 213, 426, 497, 994, 1491, 2982. There are 16 integers that are factors of 2982. The greatest factor of 2982 is 2982.
4. How to Find the LCM of 2981 and 2982?
Answer:
Least Common Multiple of 2981 and 2982 = 8889342
Step 1: Find the prime factorization of 2981
2981 = 11 x 271
Step 2: Find the prime factorization of 2982
2982 = 2 x 3 x 7 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 = 8889342 = 2 x 3 x 7 x 11 x 71 x 271
Step 4: Therefore, the least common multiple of 2981 and 2982 is 8889342.