Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1393 and 1400 the smallest integer that is 278600 that is divisible by both numbers.
Least Common Multiple (LCM) of 1393 and 1400 is 278600.
LCM(1393,1400) = 278600
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 1393 and 1400. First we will calculate the prime factors of 1393 and 1400.
Prime Factorization of 1393
7 | 1393 |
199 | 199 |
1 |
Prime factors of 1393 are 7,199. Prime factorization of 1393 in exponential form is:
1393 = 71×1991
Prime Factorization of 1400
2 | 1400 |
2 | 700 |
2 | 350 |
5 | 175 |
5 | 35 |
7 | 7 |
1 |
Prime factors of 1400 are 2, 5,7. Prime factorization of 1400 in exponential form is:
1400 = 23×52×71
Now multiplying the highest exponent prime factors to calculate the LCM of 1393 and 1400.
LCM(1393,1400) = 23×52×71×1991
LCM(1393,1400) = 278600
Factors of 1393
List of positive integer factors of 1393 that divides 1393 without a remainder.
1, 7, 199, 1393
Factors of 1400
List of positive integer factors of 1400 that divides 1400 without a remainder.
1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1393 and 1400, than apply into the LCM equation.
GCF(1393,1400) = 7
LCM(1393,1400) = ( 1393 × 1400) / 7
LCM(1393,1400) = 1950200 / 7
LCM(1393,1400) = 278600
(i) The LCM of 1400 and 1393 is associative
LCM of 1393 and 1400 = LCM of 1400 and 1393
1. What is the LCM of 1393 and 1400?
Answer: LCM of 1393 and 1400 is 278600.
2. What are the Factors of 1393?
Answer: Factors of 1393 are 1, 7, 199, 1393. There are 4 integers that are factors of 1393. The greatest factor of 1393 is 1393.
3. What are the Factors of 1400?
Answer: Factors of 1400 are 1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400. There are 24 integers that are factors of 1400. The greatest factor of 1400 is 1400.
4. How to Find the LCM of 1393 and 1400?
Answer:
Least Common Multiple of 1393 and 1400 = 278600
Step 1: Find the prime factorization of 1393
1393 = 7 x 199
Step 2: Find the prime factorization of 1400
1400 = 2 x 2 x 2 x 5 x 5 x 7
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 278600 = 2 x 2 x 2 x 5 x 5 x 7 x 199
Step 4: Therefore, the least common multiple of 1393 and 1400 is 278600.