LCM of 782, 154, 640, 368, 515
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 782, 154, 640, 368, 515 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 782, 154, 640, 368, 515. So, keep reading to learn more.
Given numbers are 782,154,640,368,515
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 782,154,640,368,515 is 1984653440.
Find LCM of 782,154,640,368,515 with Prime Factorization
| 2 | 782, 154, 640, 368, 515 |
| 2 | 391, 77, 320, 184, 515 |
| 2 | 391, 77, 160, 92, 515 |
| 2 | 391, 77, 80, 46, 515 |
| 5 | 391, 77, 40, 23, 515 |
| 23 | 391, 77, 8, 23, 103 |
| 17, 77, 8, 1, 103 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 2 x 5 x 23 x 17 x 77 x 8 x 1 x 103 = 1984653440
Therefore, the lowest common multiple of 782,154,640,368,515 is 1984653440.
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.
782 x 154 x 640 x 368 x 515 = 14607049318400
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.
782 : 1, 2, 17, 23, 34, 46, 391, 782
154 : 1, 2, 7, 11, 14, 22, 77, 154
640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
368 : 1, 2, 4, 8, 16, 23, 46, 92, 184, 368
515 : 1, 5, 103, 515
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 782,154,640,368,515, is 1.
Now, the common factors can be found like this.
782:2x 17x 23
154:2x 7x 11
640:2x 2x 2x 2x 2x 2x 2x 5
368:2x 2x 2x 2x 23
515:5x 103
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 2x 5x 23 = 7360
Therefore, the value for common factors is 7360.
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 = 14607049318400/(1x7360)
LCM = 14607049318400/7360
LCM = 1984653440
Thus, we can understand that the LCM of 782,154,640,368,515 is 1984653440.
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FAQs on LCM of 782, 154, 640, 368, 515
1. What is the LCM of 782, 154, 640, 368, 515?
Answer: LCM of 782, 154, 640, 368, 515 is 1984653440.
2. How to calculate the LCM of 782, 154, 640, 368, 515?
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 782, 154, 640, 368, 515.
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}.