Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1299 and 1305 the smallest integer that is 565065 that is divisible by both numbers.
Least Common Multiple (LCM) of 1299 and 1305 is 565065.
LCM(1299,1305) = 565065
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 1299 and 1305. First we will calculate the prime factors of 1299 and 1305.
Prime Factorization of 1299
3 | 1299 |
433 | 433 |
1 |
Prime factors of 1299 are 3,433. Prime factorization of 1299 in exponential form is:
1299 = 31×4331
Prime Factorization of 1305
3 | 1305 |
3 | 435 |
5 | 145 |
29 | 29 |
1 |
Prime factors of 1305 are 3, 5,29. Prime factorization of 1305 in exponential form is:
1305 = 32×51×291
Now multiplying the highest exponent prime factors to calculate the LCM of 1299 and 1305.
LCM(1299,1305) = 32×51×291×4331
LCM(1299,1305) = 565065
Factors of 1299
List of positive integer factors of 1299 that divides 1299 without a remainder.
1, 3, 433, 1299
Factors of 1305
List of positive integer factors of 1305 that divides 1305 without a remainder.
1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1299 and 1305, than apply into the LCM equation.
GCF(1299,1305) = 3
LCM(1299,1305) = ( 1299 × 1305) / 3
LCM(1299,1305) = 1695195 / 3
LCM(1299,1305) = 565065
(i) The LCM of 1305 and 1299 is associative
LCM of 1299 and 1305 = LCM of 1305 and 1299
1. What is the LCM of 1299 and 1305?
Answer: LCM of 1299 and 1305 is 565065.
2. What are the Factors of 1299?
Answer: Factors of 1299 are 1, 3, 433, 1299. There are 4 integers that are factors of 1299. The greatest factor of 1299 is 1299.
3. What are the Factors of 1305?
Answer: Factors of 1305 are 1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305. There are 12 integers that are factors of 1305. The greatest factor of 1305 is 1305.
4. How to Find the LCM of 1299 and 1305?
Answer:
Least Common Multiple of 1299 and 1305 = 565065
Step 1: Find the prime factorization of 1299
1299 = 3 x 433
Step 2: Find the prime factorization of 1305
1305 = 3 x 3 x 5 x 29
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 565065 = 3 x 3 x 5 x 29 x 433
Step 4: Therefore, the least common multiple of 1299 and 1305 is 565065.