LCM of 405, 781, 803, 690, 730
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 405, 781, 803, 690, 730 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 405, 781, 803, 690, 730. So, keep reading to learn more.
Given numbers are 405,781,803,690,730
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 405,781,803,690,730 is 1062152190.
Find LCM of 405,781,803,690,730 with Prime Factorization
| 2 | 405, 781, 803, 690, 730 |
| 3 | 405, 781, 803, 345, 365 |
| 5 | 135, 781, 803, 115, 365 |
| 11 | 27, 781, 803, 23, 73 |
| 73 | 27, 71, 73, 23, 73 |
| 27, 71, 1, 23, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 11 x 73 x 27 x 71 x 1 x 23 x 1 = 1062152190
Therefore, the lowest common multiple of 405,781,803,690,730 is 1062152190.
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.
405 x 781 x 803 x 690 x 730 = 127936231285500
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.
405 : 1, 3, 5, 9, 15, 27, 45, 81, 135, 405
781 : 1, 11, 71, 781
803 : 1, 11, 73, 803
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
730 : 1, 2, 5, 10, 73, 146, 365, 730
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 405,781,803,690,730, is 1.
Now, the common factors can be found like this.
405:3x 3x 3x 3x 5
781:11x 71
803:11x 73
690:2x 3x 5x 23
730:2x 5x 73
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 5x 5x 11x 73 = 120450
Therefore, the value for common factors is 120450.
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 = 127936231285500/(1x120450)
LCM = 127936231285500/120450
LCM = 1062152190
Thus, we can understand that the LCM of 405,781,803,690,730 is 1062152190.
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FAQs on LCM of 405, 781, 803, 690, 730
1. What is the LCM of 405, 781, 803, 690, 730?
Answer: LCM of 405, 781, 803, 690, 730 is 1062152190.
2. How to calculate the LCM of 405, 781, 803, 690, 730?
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 405, 781, 803, 690, 730.
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}.