Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1392 and 1399 the smallest integer that is 1947408 that is divisible by both numbers.
Least Common Multiple (LCM) of 1392 and 1399 is 1947408.
LCM(1392,1399) = 1947408
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 1392 and 1399. First we will calculate the prime factors of 1392 and 1399.
Prime Factorization of 1392
2 | 1392 |
2 | 696 |
2 | 348 |
2 | 174 |
3 | 87 |
29 | 29 |
1 |
Prime factors of 1392 are 2, 3,29. Prime factorization of 1392 in exponential form is:
1392 = 24×31×291
Prime Factorization of 1399
1399 | 1399 |
1 |
Prime factors of 1399 are 1399. Prime factorization of 1399 in exponential form is:
1399 = 13991
Now multiplying the highest exponent prime factors to calculate the LCM of 1392 and 1399.
LCM(1392,1399) = 24×31×291×13991
LCM(1392,1399) = 1947408
Factors of 1392
List of positive integer factors of 1392 that divides 1392 without a remainder.
1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 48, 58, 87, 116, 174, 232, 348, 464, 696, 1392
Factors of 1399
List of positive integer factors of 1399 that divides 1399 without a remainder.
1, 1399
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1392 and 1399, than apply into the LCM equation.
GCF(1392,1399) = 1
LCM(1392,1399) = ( 1392 × 1399) / 1
LCM(1392,1399) = 1947408 / 1
LCM(1392,1399) = 1947408
(i) The LCM of 1399 and 1392 is associative
LCM of 1392 and 1399 = LCM of 1399 and 1392
1. What is the LCM of 1392 and 1399?
Answer: LCM of 1392 and 1399 is 1947408.
2. What are the Factors of 1392?
Answer: Factors of 1392 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 48, 58, 87, 116, 174, 232, 348, 464, 696, 1392. There are 20 integers that are factors of 1392. The greatest factor of 1392 is 1392.
3. What are the Factors of 1399?
Answer: Factors of 1399 are 1, 1399. There are 2 integers that are factors of 1399. The greatest factor of 1399 is 1399.
4. How to Find the LCM of 1392 and 1399?
Answer:
Least Common Multiple of 1392 and 1399 = 1947408
Step 1: Find the prime factorization of 1392
1392 = 2 x 2 x 2 x 2 x 3 x 29
Step 2: Find the prime factorization of 1399
1399 = 1399
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1947408 = 2 x 2 x 2 x 2 x 3 x 29 x 1399
Step 4: Therefore, the least common multiple of 1392 and 1399 is 1947408.