Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1289 and 1296 the smallest integer that is 1670544 that is divisible by both numbers.
Least Common Multiple (LCM) of 1289 and 1296 is 1670544.
LCM(1289,1296) = 1670544
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 1289 and 1296. First we will calculate the prime factors of 1289 and 1296.
Prime Factorization of 1289
1289 | 1289 |
1 |
Prime factors of 1289 are 1289. Prime factorization of 1289 in exponential form is:
1289 = 12891
Prime Factorization of 1296
2 | 1296 |
2 | 648 |
2 | 324 |
2 | 162 |
3 | 81 |
3 | 27 |
3 | 9 |
3 | 3 |
1 |
Prime factors of 1296 are 2,3. Prime factorization of 1296 in exponential form is:
1296 = 24×34
Now multiplying the highest exponent prime factors to calculate the LCM of 1289 and 1296.
LCM(1289,1296) = 24×34×12891
LCM(1289,1296) = 1670544
Factors of 1289
List of positive integer factors of 1289 that divides 1289 without a remainder.
1, 1289
Factors of 1296
List of positive integer factors of 1296 that divides 1296 without a remainder.
1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 81, 108, 144, 162, 216, 324, 432, 648, 1296
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1289 and 1296, than apply into the LCM equation.
GCF(1289,1296) = 1
LCM(1289,1296) = ( 1289 × 1296) / 1
LCM(1289,1296) = 1670544 / 1
LCM(1289,1296) = 1670544
(i) The LCM of 1296 and 1289 is associative
LCM of 1289 and 1296 = LCM of 1296 and 1289
1. What is the LCM of 1289 and 1296?
Answer: LCM of 1289 and 1296 is 1670544.
2. What are the Factors of 1289?
Answer: Factors of 1289 are 1, 1289. There are 2 integers that are factors of 1289. The greatest factor of 1289 is 1289.
3. What are the Factors of 1296?
Answer: Factors of 1296 are 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 81, 108, 144, 162, 216, 324, 432, 648, 1296. There are 25 integers that are factors of 1296. The greatest factor of 1296 is 1296.
4. How to Find the LCM of 1289 and 1296?
Answer:
Least Common Multiple of 1289 and 1296 = 1670544
Step 1: Find the prime factorization of 1289
1289 = 1289
Step 2: Find the prime factorization of 1296
1296 = 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1670544 = 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 1289
Step 4: Therefore, the least common multiple of 1289 and 1296 is 1670544.