Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1558 and 1562 the smallest integer that is 1216798 that is divisible by both numbers.
Least Common Multiple (LCM) of 1558 and 1562 is 1216798.
LCM(1558,1562) = 1216798
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 1558 and 1562. First we will calculate the prime factors of 1558 and 1562.
Prime Factorization of 1558
2 | 1558 |
19 | 779 |
41 | 41 |
1 |
Prime factors of 1558 are 2, 19,41. Prime factorization of 1558 in exponential form is:
1558 = 21×191×411
Prime Factorization of 1562
2 | 1562 |
11 | 781 |
71 | 71 |
1 |
Prime factors of 1562 are 2, 11,71. Prime factorization of 1562 in exponential form is:
1562 = 21×111×711
Now multiplying the highest exponent prime factors to calculate the LCM of 1558 and 1562.
LCM(1558,1562) = 21×111×191×411×711
LCM(1558,1562) = 1216798
Factors of 1558
List of positive integer factors of 1558 that divides 1558 without a remainder.
1, 2, 19, 38, 41, 82, 779, 1558
Factors of 1562
List of positive integer factors of 1562 that divides 1562 without a remainder.
1, 2, 11, 22, 71, 142, 781, 1562
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1558 and 1562, than apply into the LCM equation.
GCF(1558,1562) = 2
LCM(1558,1562) = ( 1558 × 1562) / 2
LCM(1558,1562) = 2433596 / 2
LCM(1558,1562) = 1216798
(i) The LCM of 1562 and 1558 is associative
LCM of 1558 and 1562 = LCM of 1562 and 1558
1. What is the LCM of 1558 and 1562?
Answer: LCM of 1558 and 1562 is 1216798.
2. What are the Factors of 1558?
Answer: Factors of 1558 are 1, 2, 19, 38, 41, 82, 779, 1558. There are 8 integers that are factors of 1558. The greatest factor of 1558 is 1558.
3. What are the Factors of 1562?
Answer: Factors of 1562 are 1, 2, 11, 22, 71, 142, 781, 1562. There are 8 integers that are factors of 1562. The greatest factor of 1562 is 1562.
4. How to Find the LCM of 1558 and 1562?
Answer:
Least Common Multiple of 1558 and 1562 = 1216798
Step 1: Find the prime factorization of 1558
1558 = 2 x 19 x 41
Step 2: Find the prime factorization of 1562
1562 = 2 x 11 x 71
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1216798 = 2 x 11 x 19 x 41 x 71
Step 4: Therefore, the least common multiple of 1558 and 1562 is 1216798.