Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 2142 and 2144 the smallest integer that is 2296224 that is divisible by both numbers.
Least Common Multiple (LCM) of 2142 and 2144 is 2296224.
LCM(2142,2144) = 2296224
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 2142 and 2144. First we will calculate the prime factors of 2142 and 2144.
Prime Factorization of 2142
2 | 2142 |
3 | 1071 |
3 | 357 |
7 | 119 |
17 | 17 |
1 |
Prime factors of 2142 are 2, 3, 7,17. Prime factorization of 2142 in exponential form is:
2142 = 21×32×71×171
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 2142 and 2144.
LCM(2142,2144) = 25×32×71×171×671
LCM(2142,2144) = 2296224
Factors of 2142
List of positive integer factors of 2142 that divides 2142 without a remainder.
1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 34, 42, 51, 63, 102, 119, 126, 153, 238, 306, 357, 714, 1071, 2142
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 2142 and 2144, than apply into the LCM equation.
GCF(2142,2144) = 2
LCM(2142,2144) = ( 2142 × 2144) / 2
LCM(2142,2144) = 4592448 / 2
LCM(2142,2144) = 2296224
(i) The LCM of 2144 and 2142 is associative
LCM of 2142 and 2144 = LCM of 2144 and 2142
1. What is the LCM of 2142 and 2144?
Answer: LCM of 2142 and 2144 is 2296224.
2. What are the Factors of 2142?
Answer: Factors of 2142 are 1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 34, 42, 51, 63, 102, 119, 126, 153, 238, 306, 357, 714, 1071, 2142. There are 24 integers that are factors of 2142. The greatest factor of 2142 is 2142.
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 2142 and 2144?
Answer:
Least Common Multiple of 2142 and 2144 = 2296224
Step 1: Find the prime factorization of 2142
2142 = 2 x 3 x 3 x 7 x 17
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 = 2296224 = 2 x 2 x 2 x 2 x 2 x 3 x 3 x 7 x 17 x 67
Step 4: Therefore, the least common multiple of 2142 and 2144 is 2296224.