LCM of 991, 312, 507, 408, 628
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 991, 312, 507, 408, 628 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, 312, 507, 408, 628. So, keep reading to learn more.
Given numbers are 991,312,507,408,628
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 991,312,507,408,628 is 10728034824.
Find LCM of 991,312,507,408,628 with Prime Factorization
| 2 | 991, 312, 507, 408, 628 |
| 2 | 991, 156, 507, 204, 314 |
| 2 | 991, 78, 507, 102, 157 |
| 3 | 991, 39, 507, 51, 157 |
| 13 | 991, 13, 169, 17, 157 |
| 991, 1, 13, 17, 157 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 3 x 13 x 991 x 1 x 13 x 17 x 157 = 10728034824
Therefore, the lowest common multiple of 991,312,507,408,628 is 10728034824.
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 312 x 507 x 408 x 628 = 40165762381056
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
312 : 1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312
507 : 1, 3, 13, 39, 169, 507
408 : 1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408
628 : 1, 2, 4, 157, 314, 628
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 991,312,507,408,628, is 1.
Now, the common factors can be found like this.
991:991
312:2x 2x 2x 3x 13
507:3x 13x 13
408:2x 2x 2x 3x 17
628:2x 2x 157
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 2x 2x 2x 2x 3x 3x 13 = 3744
Therefore, the value for common factors is 3744.
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 = 40165762381056/(1x3744)
LCM = 40165762381056/3744
LCM = 10728034824
Thus, we can understand that the LCM of 991,312,507,408,628 is 10728034824.
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FAQs on LCM of 991, 312, 507, 408, 628
1. What is the LCM of 991, 312, 507, 408, 628?
Answer: LCM of 991, 312, 507, 408, 628 is 10728034824.
2. How to calculate the LCM of 991, 312, 507, 408, 628?
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, 312, 507, 408, 628.
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}.