LCM of 686, 670, 515, 785, 157
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 686, 670, 515, 785, 157 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 686, 670, 515, 785, 157. So, keep reading to learn more.
Given numbers are 686,670,515,785,157
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 686,670,515,785,157 is 3716257510.
Find LCM of 686,670,515,785,157 with Prime Factorization
| 2 | 686, 670, 515, 785, 157 |
| 5 | 343, 335, 515, 785, 157 |
| 157 | 343, 67, 103, 157, 157 |
| 343, 67, 103, 1, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 157 x 343 x 67 x 103 x 1 x 1 = 3716257510
Therefore, the lowest common multiple of 686,670,515,785,157 is 3716257510.
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.
686 x 670 x 515 x 785 x 157 = 29172621453500
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.
686 : 1, 2, 7, 14, 49, 98, 343, 686
670 : 1, 2, 5, 10, 67, 134, 335, 670
515 : 1, 5, 103, 515
785 : 1, 5, 157, 785
157 : 1, 157
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 686,670,515,785,157, is 1.
Now, the common factors can be found like this.
686:2x 7x 7x 7
670:2x 5x 67
515:5x 103
785:5x 157
157:157
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 5x 5x 157 = 7850
Therefore, the value for common factors is 7850.
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 = 29172621453500/(1x7850)
LCM = 29172621453500/7850
LCM = 3716257510
Thus, we can understand that the LCM of 686,670,515,785,157 is 3716257510.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 686, 670, 515, 785, 157
1. What is the LCM of 686, 670, 515, 785, 157?
Answer: LCM of 686, 670, 515, 785, 157 is 3716257510.
2. How to calculate the LCM of 686, 670, 515, 785, 157?
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 686, 670, 515, 785, 157.
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}.