Given numbers are 815,642,130,623

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

The LCM of 815,642,130,623 is 4237639770.

Find LCM of 815,642,130,623 with Prime Factorization

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

2 x 5 x 163 x 321 x 13 x 623 = 4237639770

Therefore, the lowest common multiple of 815,642,130,623 is 4237639770.

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 642 x 130 x 623 = 42376397700

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

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

130 : 1, 2, 5, 10, 13, 26, 65, 130

623 : 1, 7, 89, 623

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 815,642,130,623, is 1.

Now, the common factors can be found like this.

815:5x 163

642:2x 3x 107

130:2x 5x 13

623:7x 89

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

2x 5 = 10

Therefore, the value for common factors is 10.

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 = 42376397700/(1x10)

LCM = 42376397700/10

LCM = 4237639770

Thus, we can understand that the LCM of 815,642,130,623 is 4237639770.

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

• LCM of 839, 803, 997, 391
• LCM of 700, 373, 227, 878
• LCM of 553, 393, 378, 415
• LCM of 698, 920, 442, 796
• LCM of 666, 583, 705, 866

1. What is the LCM of 815, 642, 130, 623?

Answer: LCM of 815, 642, 130, 623 is 4237639770.

2. How to calculate the LCM of 815, 642, 130, 623?

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, 642, 130, 623.

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}.