LCM of 398, 642, 780, 663, 712
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 398, 642, 780, 663, 712 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 398, 642, 780, 663, 712. So, keep reading to learn more.
Given numbers are 398,642,780,663,712
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 398,642,780,663,712 is 50257442040.
Find LCM of 398,642,780,663,712 with Prime Factorization
| 2 | 398, 642, 780, 663, 712 |
| 2 | 199, 321, 390, 663, 356 |
| 3 | 199, 321, 195, 663, 178 |
| 13 | 199, 107, 65, 221, 178 |
| 199, 107, 5, 17, 178 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 13 x 199 x 107 x 5 x 17 x 178 = 50257442040
Therefore, the lowest common multiple of 398,642,780,663,712 is 50257442040.
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.
398 x 642 x 780 x 663 x 712 = 94081931498880
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.
398 : 1, 2, 199, 398
642 : 1, 2, 3, 6, 107, 214, 321, 642
780 : 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780
663 : 1, 3, 13, 17, 39, 51, 221, 663
712 : 1, 2, 4, 8, 89, 178, 356, 712
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 398,642,780,663,712, is 1.
Now, the common factors can be found like this.
398:2x 199
642:2x 3x 107
780:2x 2x 3x 5x 13
663:3x 13x 17
712:2x 2x 2x 89
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 3x 3x 13 = 1872
Therefore, the value for common factors is 1872.
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 = 94081931498880/(1x1872)
LCM = 94081931498880/1872
LCM = 50257442040
Thus, we can understand that the LCM of 398,642,780,663,712 is 50257442040.
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FAQs on LCM of 398, 642, 780, 663, 712
1. What is the LCM of 398, 642, 780, 663, 712?
Answer: LCM of 398, 642, 780, 663, 712 is 50257442040.
2. How to calculate the LCM of 398, 642, 780, 663, 712?
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 398, 642, 780, 663, 712.
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}.