Given numbers are 861,417,215,138

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

The LCM of 861,417,215,138 is 1183625310.

Find LCM of 861,417,215,138 with Prime Factorization

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

3 x 287 x 139 x 215 x 46 = 1183625310

Therefore, the lowest common multiple of 861,417,215,138 is 1183625310.

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 417 x 215 x 138 = 10652627790

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

417 : 1, 3, 139, 417

215 : 1, 5, 43, 215

138 : 1, 2, 3, 6, 23, 46, 69, 138

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 861,417,215,138, is 1.

Now, the common factors can be found like this.

861:3x 7x 41

417:3x 139

215:5x 43

138:2x 3x 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 3 = 9

Therefore, the value for common factors is 9.

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 = 10652627790/(1x9)

LCM = 10652627790/9

LCM = 1183625310

Thus, we can understand that the LCM of 861,417,215,138 is 1183625310.

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

• LCM of 728, 252, 760, 155
• LCM of 150, 764, 877, 256
• LCM of 924, 967, 998, 698
• LCM of 388, 486, 416, 934
• LCM of 732, 692, 199, 426

1. What is the LCM of 861, 417, 215, 138?

Answer: LCM of 861, 417, 215, 138 is 1183625310.

2. How to calculate the LCM of 861, 417, 215, 138?

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, 417, 215, 138.

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}.