Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1542 and 1548 the smallest integer that is 397836 that is divisible by both numbers.
Least Common Multiple (LCM) of 1542 and 1548 is 397836.
LCM(1542,1548) = 397836
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 1542 and 1548. First we will calculate the prime factors of 1542 and 1548.
Prime Factorization of 1542
2 | 1542 |
3 | 771 |
257 | 257 |
1 |
Prime factors of 1542 are 2, 3,257. Prime factorization of 1542 in exponential form is:
1542 = 21×31×2571
Prime Factorization of 1548
2 | 1548 |
2 | 774 |
3 | 387 |
3 | 129 |
43 | 43 |
1 |
Prime factors of 1548 are 2, 3,43. Prime factorization of 1548 in exponential form is:
1548 = 22×32×431
Now multiplying the highest exponent prime factors to calculate the LCM of 1542 and 1548.
LCM(1542,1548) = 22×32×431×2571
LCM(1542,1548) = 397836
Factors of 1542
List of positive integer factors of 1542 that divides 1542 without a remainder.
1, 2, 3, 6, 257, 514, 771, 1542
Factors of 1548
List of positive integer factors of 1548 that divides 1548 without a remainder.
1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1542 and 1548, than apply into the LCM equation.
GCF(1542,1548) = 6
LCM(1542,1548) = ( 1542 × 1548) / 6
LCM(1542,1548) = 2387016 / 6
LCM(1542,1548) = 397836
(i) The LCM of 1548 and 1542 is associative
LCM of 1542 and 1548 = LCM of 1548 and 1542
1. What is the LCM of 1542 and 1548?
Answer: LCM of 1542 and 1548 is 397836.
2. What are the Factors of 1542?
Answer: Factors of 1542 are 1, 2, 3, 6, 257, 514, 771, 1542. There are 8 integers that are factors of 1542. The greatest factor of 1542 is 1542.
3. What are the Factors of 1548?
Answer: Factors of 1548 are 1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548. There are 18 integers that are factors of 1548. The greatest factor of 1548 is 1548.
4. How to Find the LCM of 1542 and 1548?
Answer:
Least Common Multiple of 1542 and 1548 = 397836
Step 1: Find the prime factorization of 1542
1542 = 2 x 3 x 257
Step 2: Find the prime factorization of 1548
1548 = 2 x 2 x 3 x 3 x 43
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 397836 = 2 x 2 x 3 x 3 x 43 x 257
Step 4: Therefore, the least common multiple of 1542 and 1548 is 397836.