Given numbers are 638,437,418,387

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

The LCM of 638,437,418,387 is 107897922.

Find LCM of 638,437,418,387 with Prime Factorization

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

2 x 11 x 19 x 29 x 23 x 1 x 387 = 107897922

Therefore, the lowest common multiple of 638,437,418,387 is 107897922.

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.

638 x 437 x 418 x 387 = 45101331396

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.

638 : 1, 2, 11, 22, 29, 58, 319, 638

437 : 1, 19, 23, 437

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

387 : 1, 3, 9, 43, 129, 387

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 638,437,418,387, is 1.

Now, the common factors can be found like this.

638:2x 11x 29

437:19x 23

418:2x 11x 19

387:3x 3x 43

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

2x 11x 19 = 418

Therefore, the value for common factors is 418.

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 = 45101331396/(1x418)

LCM = 45101331396/418

LCM = 107897922

Thus, we can understand that the LCM of 638,437,418,387 is 107897922.

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

• LCM of 118, 448, 886, 225
• LCM of 709, 814, 238, 835
• LCM of 880, 843, 878, 793
• LCM of 410, 598, 205, 216
• LCM of 510, 840, 823, 741

1. What is the LCM of 638, 437, 418, 387?

Answer: LCM of 638, 437, 418, 387 is 107897922.

2. How to calculate the LCM of 638, 437, 418, 387?

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 638, 437, 418, 387.

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}.