LCM of 391, 169, 806, 370, 989
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 391, 169, 806, 370, 989 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 391, 169, 806, 370, 989. So, keep reading to learn more.
Given numbers are 391,169,806,370,989
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 391,169,806,370,989 is 32590823590.
Find LCM of 391,169,806,370,989 with Prime Factorization
| 2 | 391, 169, 806, 370, 989 |
| 13 | 391, 169, 403, 185, 989 |
| 23 | 391, 13, 31, 185, 989 |
| 17, 13, 31, 185, 43 |
Multiply the prime numbers at the bottom and the left side.
2 x 13 x 23 x 17 x 13 x 31 x 185 x 43 = 32590823590
Therefore, the lowest common multiple of 391,169,806,370,989 is 32590823590.
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.
391 x 169 x 806 x 370 x 989 = 19489312506820
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.
391 : 1, 17, 23, 391
169 : 1, 13, 169
806 : 1, 2, 13, 26, 31, 62, 403, 806
370 : 1, 2, 5, 10, 37, 74, 185, 370
989 : 1, 23, 43, 989
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 391,169,806,370,989, is 1.
Now, the common factors can be found like this.
391:17x 23
169:13x 13
806:2x 13x 31
370:2x 5x 37
989:23x 43
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 13x 23 = 598
Therefore, the value for common factors is 598.
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 = 19489312506820/(1x598)
LCM = 19489312506820/598
LCM = 32590823590
Thus, we can understand that the LCM of 391,169,806,370,989 is 32590823590.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 391, 169, 806, 370, 989
1. What is the LCM of 391, 169, 806, 370, 989?
Answer: LCM of 391, 169, 806, 370, 989 is 32590823590.
2. How to calculate the LCM of 391, 169, 806, 370, 989?
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 391, 169, 806, 370, 989.
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}.