Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 2190 and 2191 the smallest integer that is 4798290 that is divisible by both numbers.
Least Common Multiple (LCM) of 2190 and 2191 is 4798290.
LCM(2190,2191) = 4798290
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 2190 and 2191. First we will calculate the prime factors of 2190 and 2191.
Prime Factorization of 2190
2 | 2190 |
3 | 1095 |
5 | 365 |
73 | 73 |
1 |
Prime factors of 2190 are 2, 3, 5,73. Prime factorization of 2190 in exponential form is:
2190 = 21×31×51×731
Prime Factorization of 2191
7 | 2191 |
313 | 313 |
1 |
Prime factors of 2191 are 7,313. Prime factorization of 2191 in exponential form is:
2191 = 71×3131
Now multiplying the highest exponent prime factors to calculate the LCM of 2190 and 2191.
LCM(2190,2191) = 21×31×51×71×731×3131
LCM(2190,2191) = 4798290
Factors of 2190
List of positive integer factors of 2190 that divides 2190 without a remainder.
1, 2, 3, 5, 6, 10, 15, 30, 73, 146, 219, 365, 438, 730, 1095, 2190
Factors of 2191
List of positive integer factors of 2191 that divides 2191 without a remainder.
1, 7, 313, 2191
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2190 and 2191, than apply into the LCM equation.
GCF(2190,2191) = 1
LCM(2190,2191) = ( 2190 × 2191) / 1
LCM(2190,2191) = 4798290 / 1
LCM(2190,2191) = 4798290
(i) The LCM of 2191 and 2190 is associative
LCM of 2190 and 2191 = LCM of 2191 and 2190
1. What is the LCM of 2190 and 2191?
Answer: LCM of 2190 and 2191 is 4798290.
2. What are the Factors of 2190?
Answer: Factors of 2190 are 1, 2, 3, 5, 6, 10, 15, 30, 73, 146, 219, 365, 438, 730, 1095, 2190. There are 16 integers that are factors of 2190. The greatest factor of 2190 is 2190.
3. What are the Factors of 2191?
Answer: Factors of 2191 are 1, 7, 313, 2191. There are 4 integers that are factors of 2191. The greatest factor of 2191 is 2191.
4. How to Find the LCM of 2190 and 2191?
Answer:
Least Common Multiple of 2190 and 2191 = 4798290
Step 1: Find the prime factorization of 2190
2190 = 2 x 3 x 5 x 73
Step 2: Find the prime factorization of 2191
2191 = 7 x 313
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 4798290 = 2 x 3 x 5 x 7 x 73 x 313
Step 4: Therefore, the least common multiple of 2190 and 2191 is 4798290.