Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1279 and 1286 the smallest integer that is 1644794 that is divisible by both numbers.
Least Common Multiple (LCM) of 1279 and 1286 is 1644794.
LCM(1279,1286) = 1644794
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 1279 and 1286. First we will calculate the prime factors of 1279 and 1286.
Prime Factorization of 1279
1279 | 1279 |
1 |
Prime factors of 1279 are 1279. Prime factorization of 1279 in exponential form is:
1279 = 12791
Prime Factorization of 1286
2 | 1286 |
643 | 643 |
1 |
Prime factors of 1286 are 2,643. Prime factorization of 1286 in exponential form is:
1286 = 21×6431
Now multiplying the highest exponent prime factors to calculate the LCM of 1279 and 1286.
LCM(1279,1286) = 21×6431×12791
LCM(1279,1286) = 1644794
Factors of 1279
List of positive integer factors of 1279 that divides 1279 without a remainder.
1, 1279
Factors of 1286
List of positive integer factors of 1286 that divides 1286 without a remainder.
1, 2, 643, 1286
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1279 and 1286, than apply into the LCM equation.
GCF(1279,1286) = 1
LCM(1279,1286) = ( 1279 × 1286) / 1
LCM(1279,1286) = 1644794 / 1
LCM(1279,1286) = 1644794
(i) The LCM of 1286 and 1279 is associative
LCM of 1279 and 1286 = LCM of 1286 and 1279
1. What is the LCM of 1279 and 1286?
Answer: LCM of 1279 and 1286 is 1644794.
2. What are the Factors of 1279?
Answer: Factors of 1279 are 1, 1279. There are 2 integers that are factors of 1279. The greatest factor of 1279 is 1279.
3. What are the Factors of 1286?
Answer: Factors of 1286 are 1, 2, 643, 1286. There are 4 integers that are factors of 1286. The greatest factor of 1286 is 1286.
4. How to Find the LCM of 1279 and 1286?
Answer:
Least Common Multiple of 1279 and 1286 = 1644794
Step 1: Find the prime factorization of 1279
1279 = 1279
Step 2: Find the prime factorization of 1286
1286 = 2 x 643
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1644794 = 2 x 643 x 1279
Step 4: Therefore, the least common multiple of 1279 and 1286 is 1644794.