Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1538 and 1544 the smallest integer that is 1187336 that is divisible by both numbers.
Least Common Multiple (LCM) of 1538 and 1544 is 1187336.
LCM(1538,1544) = 1187336
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 1538 and 1544. First we will calculate the prime factors of 1538 and 1544.
Prime Factorization of 1538
2 | 1538 |
769 | 769 |
1 |
Prime factors of 1538 are 2,769. Prime factorization of 1538 in exponential form is:
1538 = 21×7691
Prime Factorization of 1544
2 | 1544 |
2 | 772 |
2 | 386 |
193 | 193 |
1 |
Prime factors of 1544 are 2,193. Prime factorization of 1544 in exponential form is:
1544 = 23×1931
Now multiplying the highest exponent prime factors to calculate the LCM of 1538 and 1544.
LCM(1538,1544) = 23×1931×7691
LCM(1538,1544) = 1187336
Factors of 1538
List of positive integer factors of 1538 that divides 1538 without a remainder.
1, 2, 769, 1538
Factors of 1544
List of positive integer factors of 1544 that divides 1544 without a remainder.
1, 2, 4, 8, 193, 386, 772, 1544
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1538 and 1544, than apply into the LCM equation.
GCF(1538,1544) = 2
LCM(1538,1544) = ( 1538 × 1544) / 2
LCM(1538,1544) = 2374672 / 2
LCM(1538,1544) = 1187336
(i) The LCM of 1544 and 1538 is associative
LCM of 1538 and 1544 = LCM of 1544 and 1538
1. What is the LCM of 1538 and 1544?
Answer: LCM of 1538 and 1544 is 1187336.
2. What are the Factors of 1538?
Answer: Factors of 1538 are 1, 2, 769, 1538. There are 4 integers that are factors of 1538. The greatest factor of 1538 is 1538.
3. What are the Factors of 1544?
Answer: Factors of 1544 are 1, 2, 4, 8, 193, 386, 772, 1544. There are 8 integers that are factors of 1544. The greatest factor of 1544 is 1544.
4. How to Find the LCM of 1538 and 1544?
Answer:
Least Common Multiple of 1538 and 1544 = 1187336
Step 1: Find the prime factorization of 1538
1538 = 2 x 769
Step 2: Find the prime factorization of 1544
1544 = 2 x 2 x 2 x 193
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1187336 = 2 x 2 x 2 x 193 x 769
Step 4: Therefore, the least common multiple of 1538 and 1544 is 1187336.