LCM of 991, 407, 346, 578
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 991, 407, 346, 578 with the LCM of Two or More Numbers Calculator. Here we are teaching you two different methods through which you can calculate the LCM of 991, 407, 346, 578. So, keep reading to learn more.
Given numbers are 991,407,346,578
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 991,407,346,578 is 40331279978.
Find LCM of 991,407,346,578 with Prime Factorization
| 2 | 991, 407, 346, 578 |
| 991, 407, 173, 289 |
Multiply the prime numbers at the bottom and the left side.
2 x 991 x 407 x 173 x 289 = 40331279978
Therefore, the lowest common multiple of 991,407,346,578 is 40331279978.
LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
Firstly, we have to find the product of all the numbers.
991 x 407 x 346 x 578 = 80662559956
Then, let us find the GCF of these five numbers. To do so, we have to list down the factors for each number and choose the highest factor that is in all of the lists.
991 : 1, 991
407 : 1, 11, 37, 407
346 : 1, 2, 173, 346
578 : 1, 2, 17, 34, 289, 578
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 991,407,346,578, is 1.
Now, the common factors can be found like this.
991:991
407:11x 37
346:2x 173
578:2x 17x 17
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2 = 2
Therefore, the value for common factors is 2.
Now that we have all the elements of the formula, we can plug them in to calculate the LCM.
LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
LCM = 80662559956/(1x2)
LCM = 80662559956/2
LCM = 40331279978
Thus, we can understand that the LCM of 991,407,346,578 is 40331279978.
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FAQs on LCM of 991, 407, 346, 578
1. What is the LCM of 991, 407, 346, 578?
Answer: LCM of 991, 407, 346, 578 is 40331279978.
2. How to calculate the LCM of 991, 407, 346, 578?
The LCM can be found using two methods. You can either use the LCM formula or the prime factorization method to calculate the LCM of 991, 407, 346, 578.
3. What is the LCM formula?
The LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}.