Given numbers are 815,398,620,777,520

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

The LCM of 815,398,620,777,520 is 406281209880.

Find LCM of 815,398,620,777,520 with Prime Factorization

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

2 x 2 x 5 x 163 x 199 x 31 x 777 x 26 = 406281209880

Therefore, the lowest common multiple of 815,398,620,777,520 is 406281209880.

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 398 x 620 x 777 x 520 = 81256241976000

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

398 : 1, 2, 199, 398

620 : 1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620

777 : 1, 3, 7, 21, 37, 111, 259, 777

520 : 1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 815,398,620,777,520, is 1.

Now, the common factors can be found like this.

815:5x 163

398:2x 199

620:2x 2x 5x 31

777:3x 7x 37

520:2x 2x 2x 5x 13

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

2x 2x 2x 5x 5 = 200

Therefore, the value for common factors is 200.

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 = 81256241976000/(1x200)

LCM = 81256241976000/200

LCM = 406281209880

Thus, we can understand that the LCM of 815,398,620,777,520 is 406281209880.

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

• LCM of 673, 397, 282, 271, 711
• LCM of 366, 244, 555, 702, 241
• LCM of 897, 494, 752, 695, 241
• LCM of 229, 428, 688, 806, 593
• LCM of 874, 767, 459, 991, 365

1. What is the LCM of 815, 398, 620, 777, 520?

Answer: LCM of 815, 398, 620, 777, 520 is 406281209880.

2. How to calculate the LCM of 815, 398, 620, 777, 520?

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, 398, 620, 777, 520.

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}.