Given numbers are 386,394,638,815

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

The LCM of 386,394,638,815 is 19769779370.

Find LCM of 386,394,638,815 with Prime Factorization

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

2 x 193 x 197 x 319 x 815 = 19769779370

Therefore, the lowest common multiple of 386,394,638,815 is 19769779370.

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.

386 x 394 x 638 x 815 = 79079117480

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.

386 : 1, 2, 193, 386

394 : 1, 2, 197, 394

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

815 : 1, 5, 163, 815

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 386,394,638,815, is 1.

Now, the common factors can be found like this.

386:2x 193

394:2x 197

638:2x 11x 29

815:5x 163

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

2x 2 = 4

Therefore, the value for common factors is 4.

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 = 79079117480/(1x4)

LCM = 79079117480/4

LCM = 19769779370

Thus, we can understand that the LCM of 386,394,638,815 is 19769779370.

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

• LCM of 358, 884, 358, 123
• LCM of 888, 379, 953, 599
• LCM of 653, 970, 257, 897
• LCM of 772, 516, 220, 428
• LCM of 251, 172, 733, 911

1. What is the LCM of 386, 394, 638, 815?

Answer: LCM of 386, 394, 638, 815 is 19769779370.

2. How to calculate the LCM of 386, 394, 638, 815?

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 386, 394, 638, 815.

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}.