Given numbers are 638,530,920,330,790

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

The LCM of 638,530,920,330,790 is 3686402280.

Find LCM of 638,530,920,330,790 with Prime Factorization

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

2 x 5 x 11 x 29 x 53 x 92 x 3 x 79 = 3686402280

Therefore, the lowest common multiple of 638,530,920,330,790 is 3686402280.

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.

638 x 530 x 920 x 330 x 790 = 81100850160000

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.

638 : 1, 2, 11, 22, 29, 58, 319, 638

530 : 1, 2, 5, 10, 53, 106, 265, 530

920 : 1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920

330 : 1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330

790 : 1, 2, 5, 10, 79, 158, 395, 790

2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 638,530,920,330,790, is 2.

Now, the common factors can be found like this.

638:2x 11x 29

530:2x 5x 53

920:2x 2x 2x 5x 23

330:2x 3x 5x 11

790:2x 5x 79

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 5x 5x 5x 11 = 11000

Therefore, the value for common factors is 11000.

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 = 81100850160000/(2x11000)

LCM = 81100850160000/22000

LCM = 3686402280

Thus, we can understand that the LCM of 638,530,920,330,790 is 3686402280.

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

• LCM of 246, 681, 572, 247, 839
• LCM of 121, 605, 721, 190, 105
• LCM of 331, 868, 388, 467, 815
• LCM of 790, 698, 771, 516, 643
• LCM of 424, 736, 187, 180, 523

1. What is the LCM of 638, 530, 920, 330, 790?

Answer: LCM of 638, 530, 920, 330, 790 is 3686402280.

2. How to calculate the LCM of 638, 530, 920, 330, 790?

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 638, 530, 920, 330, 790.

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}.