Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 2140 and 2145 the smallest integer that is 918060 that is divisible by both numbers.
Least Common Multiple (LCM) of 2140 and 2145 is 918060.
LCM(2140,2145) = 918060
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 2140 and 2145. First we will calculate the prime factors of 2140 and 2145.
Prime Factorization of 2140
2 | 2140 |
2 | 1070 |
5 | 535 |
107 | 107 |
1 |
Prime factors of 2140 are 2, 5,107. Prime factorization of 2140 in exponential form is:
2140 = 22×51×1071
Prime Factorization of 2145
3 | 2145 |
5 | 715 |
11 | 143 |
13 | 13 |
1 |
Prime factors of 2145 are 3, 5, 11,13. Prime factorization of 2145 in exponential form is:
2145 = 31×51×111×131
Now multiplying the highest exponent prime factors to calculate the LCM of 2140 and 2145.
LCM(2140,2145) = 22×31×51×111×131×1071
LCM(2140,2145) = 918060
Factors of 2140
List of positive integer factors of 2140 that divides 2140 without a remainder.
1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140
Factors of 2145
List of positive integer factors of 2145 that divides 2145 without a remainder.
1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 143, 165, 195, 429, 715, 2145
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2140 and 2145, than apply into the LCM equation.
GCF(2140,2145) = 5
LCM(2140,2145) = ( 2140 × 2145) / 5
LCM(2140,2145) = 4590300 / 5
LCM(2140,2145) = 918060
(i) The LCM of 2145 and 2140 is associative
LCM of 2140 and 2145 = LCM of 2145 and 2140
1. What is the LCM of 2140 and 2145?
Answer: LCM of 2140 and 2145 is 918060.
2. What are the Factors of 2140?
Answer: Factors of 2140 are 1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140. There are 12 integers that are factors of 2140. The greatest factor of 2140 is 2140.
3. What are the Factors of 2145?
Answer: Factors of 2145 are 1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 143, 165, 195, 429, 715, 2145. There are 16 integers that are factors of 2145. The greatest factor of 2145 is 2145.
4. How to Find the LCM of 2140 and 2145?
Answer:
Least Common Multiple of 2140 and 2145 = 918060
Step 1: Find the prime factorization of 2140
2140 = 2 x 2 x 5 x 107
Step 2: Find the prime factorization of 2145
2145 = 3 x 5 x 11 x 13
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 918060 = 2 x 2 x 3 x 5 x 11 x 13 x 107
Step 4: Therefore, the least common multiple of 2140 and 2145 is 918060.