Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 578 and 581 the smallest integer that is 335818 that is divisible by both numbers.
Least Common Multiple (LCM) of 578 and 581 is 335818.
LCM(578,581) = 335818
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 578 and 581. First we will calculate the prime factors of 578 and 581.
Prime Factorization of 578
2 | 578 |
17 | 289 |
17 | 17 |
1 |
Prime factors of 578 are 2,17. Prime factorization of 578 in exponential form is:
578 = 21×172
Prime Factorization of 581
7 | 581 |
83 | 83 |
1 |
Prime factors of 581 are 7,83. Prime factorization of 581 in exponential form is:
581 = 71×831
Now multiplying the highest exponent prime factors to calculate the LCM of 578 and 581.
LCM(578,581) = 21×71×172×831
LCM(578,581) = 335818
Factors of 578
List of positive integer factors of 578 that divides 578 without a remainder.
1, 2, 17, 34, 289, 578
Factors of 581
List of positive integer factors of 581 that divides 581 without a remainder.
1, 7, 83, 581
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 578 and 581, than apply into the LCM equation.
GCF(578,581) = 1
LCM(578,581) = ( 578 × 581) / 1
LCM(578,581) = 335818 / 1
LCM(578,581) = 335818
(i) The LCM of 581 and 578 is associative
LCM of 578 and 581 = LCM of 581 and 578
1. What is the LCM of 578 and 581?
Answer: LCM of 578 and 581 is 335818.
2. What are the Factors of 578?
Answer: Factors of 578 are 1, 2, 17, 34, 289, 578. There are 6 integers that are factors of 578. The greatest factor of 578 is 578.
3. What are the Factors of 581?
Answer: Factors of 581 are 1, 7, 83, 581. There are 4 integers that are factors of 581. The greatest factor of 581 is 581.
4. How to Find the LCM of 578 and 581?
Answer:
Least Common Multiple of 578 and 581 = 335818
Step 1: Find the prime factorization of 578
578 = 2 x 17 x 17
Step 2: Find the prime factorization of 581
581 = 7 x 83
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 335818 = 2 x 7 x 17 x 17 x 83
Step 4: Therefore, the least common multiple of 578 and 581 is 335818.