Given numbers are 638,422,266,921

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

The LCM of 638,422,266,921 is 16489762674.

Find LCM of 638,422,266,921 with Prime Factorization

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

2 x 319 x 211 x 133 x 921 = 16489762674

Therefore, the lowest common multiple of 638,422,266,921 is 16489762674.

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 422 x 266 x 921 = 65959050696

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

422 : 1, 2, 211, 422

266 : 1, 2, 7, 14, 19, 38, 133, 266

921 : 1, 3, 307, 921

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 638,422,266,921, is 1.

Now, the common factors can be found like this.

638:2x 11x 29

422:2x 211

266:2x 7x 19

921:3x 307

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 = 65959050696/(1x4)

LCM = 65959050696/4

LCM = 16489762674

Thus, we can understand that the LCM of 638,422,266,921 is 16489762674.

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

• LCM of 721, 718, 600, 106
• LCM of 279, 799, 377, 151
• LCM of 396, 652, 562, 984
• LCM of 336, 299, 595, 800
• LCM of 549, 455, 801, 685

1. What is the LCM of 638, 422, 266, 921?

Answer: LCM of 638, 422, 266, 921 is 16489762674.

2. How to calculate the LCM of 638, 422, 266, 921?

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, 422, 266, 921.

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}.