Given numbers are 815,181,742,642

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

The LCM of 815,181,742,642 is 35135417730.

Find LCM of 815,181,742,642 with Prime Factorization

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

2 x 815 x 181 x 371 x 321 = 35135417730

Therefore, the lowest common multiple of 815,181,742,642 is 35135417730.

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.

815 x 181 x 742 x 642 = 70270835460

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.

815 : 1, 5, 163, 815

181 : 1, 181

742 : 1, 2, 7, 14, 53, 106, 371, 742

642 : 1, 2, 3, 6, 107, 214, 321, 642

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 815,181,742,642, is 1.

Now, the common factors can be found like this.

815:5x 163

181:181

742:2x 7x 53

642:2x 3x 107

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

2 = 2

Therefore, the value for common factors is 2.

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 = 70270835460/(1x2)

LCM = 70270835460/2

LCM = 35135417730

Thus, we can understand that the LCM of 815,181,742,642 is 35135417730.

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

• LCM of 241, 466, 319, 229
• LCM of 782, 438, 321, 204
• LCM of 800, 946, 790, 710
• LCM of 525, 686, 205, 670
• LCM of 893, 553, 923, 920

1. What is the LCM of 815, 181, 742, 642?

Answer: LCM of 815, 181, 742, 642 is 35135417730.

2. How to calculate the LCM of 815, 181, 742, 642?

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 815, 181, 742, 642.

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}.