Given numbers are 861,516,215,853,391

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

The LCM of 861,516,215,853,391 is 246960440580.

Find LCM of 861,516,215,853,391 with Prime Factorization

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

3 x 43 x 287 x 4 x 5 x 853 x 391 = 246960440580

Therefore, the lowest common multiple of 861,516,215,853,391 is 246960440580.

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.

861 x 516 x 215 x 853 x 391 = 31857896834820

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.

861 : 1, 3, 7, 21, 41, 123, 287, 861

516 : 1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516

215 : 1, 5, 43, 215

853 : 1, 853

391 : 1, 17, 23, 391

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 861,516,215,853,391, is 1.

Now, the common factors can be found like this.

861:3x 7x 41

516:2x 2x 3x 43

215:5x 43

853:853

391:17x 23

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

3x 43 = 129

Therefore, the value for common factors is 129.

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 = 31857896834820/(1x129)

LCM = 31857896834820/129

LCM = 246960440580

Thus, we can understand that the LCM of 861,516,215,853,391 is 246960440580.

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

• LCM of 129, 113, 320, 387, 738
• LCM of 402, 809, 497, 572, 770
• LCM of 671, 672, 988, 776, 833
• LCM of 382, 800, 656, 821, 537
• LCM of 644, 781, 487, 670, 211

1. What is the LCM of 861, 516, 215, 853, 391?

Answer: LCM of 861, 516, 215, 853, 391 is 246960440580.

2. How to calculate the LCM of 861, 516, 215, 853, 391?

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 861, 516, 215, 853, 391.

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}.