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 2144 the smallest integer that is 1147040 that is divisible by both numbers.
Least Common Multiple (LCM) of 2140 and 2144 is 1147040.
LCM(2140,2144) = 1147040
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 2144. First we will calculate the prime factors of 2140 and 2144.
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 2144
2 | 2144 |
2 | 1072 |
2 | 536 |
2 | 268 |
2 | 134 |
67 | 67 |
1 |
Prime factors of 2144 are 2,67. Prime factorization of 2144 in exponential form is:
2144 = 25×671
Now multiplying the highest exponent prime factors to calculate the LCM of 2140 and 2144.
LCM(2140,2144) = 25×51×671×1071
LCM(2140,2144) = 1147040
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 2144
List of positive integer factors of 2144 that divides 2144 without a remainder.
1, 2, 4, 8, 16, 32, 67, 134, 268, 536, 1072, 2144
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2140 and 2144, than apply into the LCM equation.
GCF(2140,2144) = 4
LCM(2140,2144) = ( 2140 × 2144) / 4
LCM(2140,2144) = 4588160 / 4
LCM(2140,2144) = 1147040
(i) The LCM of 2144 and 2140 is associative
LCM of 2140 and 2144 = LCM of 2144 and 2140
1. What is the LCM of 2140 and 2144?
Answer: LCM of 2140 and 2144 is 1147040.
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 2144?
Answer: Factors of 2144 are 1, 2, 4, 8, 16, 32, 67, 134, 268, 536, 1072, 2144. There are 12 integers that are factors of 2144. The greatest factor of 2144 is 2144.
4. How to Find the LCM of 2140 and 2144?
Answer:
Least Common Multiple of 2140 and 2144 = 1147040
Step 1: Find the prime factorization of 2140
2140 = 2 x 2 x 5 x 107
Step 2: Find the prime factorization of 2144
2144 = 2 x 2 x 2 x 2 x 2 x 67
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1147040 = 2 x 2 x 2 x 2 x 2 x 5 x 67 x 107
Step 4: Therefore, the least common multiple of 2140 and 2144 is 1147040.