Given numbers are 418,697,388,642

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

The LCM of 418,697,388,642 is 18143280804.

Find LCM of 418,697,388,642 with Prime Factorization

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

2 x 209 x 697 x 194 x 321 = 18143280804

Therefore, the lowest common multiple of 418,697,388,642 is 18143280804.

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.

418 x 697 x 388 x 642 = 72573123216

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.

418 : 1, 2, 11, 19, 22, 38, 209, 418

697 : 1, 17, 41, 697

388 : 1, 2, 4, 97, 194, 388

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 418,697,388,642, is 1.

Now, the common factors can be found like this.

418:2x 11x 19

697:17x 41

388:2x 2x 97

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.

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 = 72573123216/(1x4)

LCM = 72573123216/4

LCM = 18143280804

Thus, we can understand that the LCM of 418,697,388,642 is 18143280804.

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

• LCM of 522, 133, 418, 839
• LCM of 289, 576, 440, 231
• LCM of 529, 466, 304, 996
• LCM of 276, 870, 568, 565
• LCM of 515, 336, 500, 182

1. What is the LCM of 418, 697, 388, 642?

Answer: LCM of 418, 697, 388, 642 is 18143280804.

2. How to calculate the LCM of 418, 697, 388, 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 418, 697, 388, 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}.