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 1546 the smallest integer that is 1188874 that is divisible by both numbers.
Least Common Multiple (LCM) of 1538 and 1546 is 1188874.
LCM(1538,1546) = 1188874
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 1546. First we will calculate the prime factors of 1538 and 1546.
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 1546
2 | 1546 |
773 | 773 |
1 |
Prime factors of 1546 are 2,773. Prime factorization of 1546 in exponential form is:
1546 = 21×7731
Now multiplying the highest exponent prime factors to calculate the LCM of 1538 and 1546.
LCM(1538,1546) = 21×7691×7731
LCM(1538,1546) = 1188874
Factors of 1538
List of positive integer factors of 1538 that divides 1538 without a remainder.
1, 2, 769, 1538
Factors of 1546
List of positive integer factors of 1546 that divides 1546 without a remainder.
1, 2, 773, 1546
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1538 and 1546, than apply into the LCM equation.
GCF(1538,1546) = 2
LCM(1538,1546) = ( 1538 × 1546) / 2
LCM(1538,1546) = 2377748 / 2
LCM(1538,1546) = 1188874
(i) The LCM of 1546 and 1538 is associative
LCM of 1538 and 1546 = LCM of 1546 and 1538
1. What is the LCM of 1538 and 1546?
Answer: LCM of 1538 and 1546 is 1188874.
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 1546?
Answer: Factors of 1546 are 1, 2, 773, 1546. There are 4 integers that are factors of 1546. The greatest factor of 1546 is 1546.
4. How to Find the LCM of 1538 and 1546?
Answer:
Least Common Multiple of 1538 and 1546 = 1188874
Step 1: Find the prime factorization of 1538
1538 = 2 x 769
Step 2: Find the prime factorization of 1546
1546 = 2 x 773
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1188874 = 2 x 769 x 773
Step 4: Therefore, the least common multiple of 1538 and 1546 is 1188874.