Given numbers are 834,391,391,643

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

The LCM of 834,391,391,643 is 209678442.

Find LCM of 834,391,391,643 with Prime Factorization

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

17 x 23 x 834 x 1 x 1 x 643 = 209678442

Therefore, the lowest common multiple of 834,391,391,643 is 209678442.

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.

834 x 391 x 391 x 643 = 81984270822

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.

834 : 1, 2, 3, 6, 139, 278, 417, 834

391 : 1, 17, 23, 391

391 : 1, 17, 23, 391

643 : 1, 643

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 834,391,391,643, is 1.

Now, the common factors can be found like this.

834:2x 3x 139

391:17x 23

391:17x 23

643:643

From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.

17x 23 = 391

Therefore, the value for common factors is 391.

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 = 81984270822/(1x391)

LCM = 81984270822/391

LCM = 209678442

Thus, we can understand that the LCM of 834,391,391,643 is 209678442.

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

• LCM of 751, 798, 708, 892
• LCM of 849, 575, 669, 481
• LCM of 111, 576, 915, 697
• LCM of 765, 488, 180, 714
• LCM of 610, 342, 995, 530

1. What is the LCM of 834, 391, 391, 643?

Answer: LCM of 834, 391, 391, 643 is 209678442.

2. How to calculate the LCM of 834, 391, 391, 643?

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 834, 391, 391, 643.

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}.