Given numbers are 680,418,408,856

The least common multiple of numbers can be find using the prime factorization method or LCM formula.

The LCM of 680,418,408,856 is 45620520.

Find LCM of 680,418,408,856 with Prime Factorization

Multiply the prime numbers at the bottom and the left side.

2 x 2 x 2 x 17 x 5 x 209 x 3 x 107 = 45620520

Therefore, the lowest common multiple of 680,418,408,856 is 45620520.

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.

680 x 418 x 408 x 856 = 99270251520

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.

680 : 1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680

418 : 1, 2, 11, 19, 22, 38, 209, 418

408 : 1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408

856 : 1, 2, 4, 8, 107, 214, 428, 856

2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 680,418,408,856, is 2.

Now, the common factors can be found like this.

680:2x 2x 2x 5x 17

418:2x 11x 19

408:2x 2x 2x 3x 17

856:2x 2x 2x 107

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 17 = 1088

Therefore, the value for common factors is 1088.

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 = 99270251520/(2x1088)

LCM = 99270251520/2176

LCM = 45620520

Thus, we can understand that the LCM of 680,418,408,856 is 45620520.

Here are some samples of LCM of two or more Numbers calculations.

• LCM of 816, 376, 347, 593
• LCM of 500, 668, 577, 449
• LCM of 864, 685, 455, 947
• LCM of 669, 723, 831, 976
• LCM of 404, 992, 759, 289

1. What is the LCM of 680, 418, 408, 856?

Answer: LCM of 680, 418, 408, 856 is 45620520.

2. How to calculate the LCM of 680, 418, 408, 856?

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 680, 418, 408, 856.

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}.