LCM of 391, 822, 221, 115, 143
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 391, 822, 221, 115, 143 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, 822, 221, 115, 143. So, keep reading to learn more.
Given numbers are 391,822,221,115,143
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 391,822,221,115,143 is 229802430.
Find LCM of 391,822,221,115,143 with Prime Factorization
| 13 | 391, 822, 221, 115, 143 |
| 17 | 391, 822, 17, 115, 11 |
| 23 | 23, 822, 1, 115, 11 |
| 1, 822, 1, 5, 11 |
Multiply the prime numbers at the bottom and the left side.
13 x 17 x 23 x 1 x 822 x 1 x 5 x 11 = 229802430
Therefore, the lowest common multiple of 391,822,221,115,143 is 229802430.
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 822 x 221 x 115 x 143 = 1168085751690
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
822 : 1, 2, 3, 6, 137, 274, 411, 822
221 : 1, 13, 17, 221
115 : 1, 5, 23, 115
143 : 1, 11, 13, 143
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 391,822,221,115,143, is 1.
Now, the common factors can be found like this.
391:17x 23
822:2x 3x 137
221:13x 17
115:5x 23
143:11x 13
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
13x 17x 23 = 5083
Therefore, the value for common factors is 5083.
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 = 1168085751690/(1x5083)
LCM = 1168085751690/5083
LCM = 229802430
Thus, we can understand that the LCM of 391,822,221,115,143 is 229802430.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 391, 822, 221, 115, 143
1. What is the LCM of 391, 822, 221, 115, 143?
Answer: LCM of 391, 822, 221, 115, 143 is 229802430.
2. How to calculate the LCM of 391, 822, 221, 115, 143?
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, 822, 221, 115, 143.
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}.