Given numbers are 638,644,878,397

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

The LCM of 638,644,878,397 is 35804002388.

Find LCM of 638,644,878,397 with Prime Factorization

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

2 x 319 x 322 x 439 x 397 = 35804002388

Therefore, the lowest common multiple of 638,644,878,397 is 35804002388.

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 644 x 878 x 397 = 143216009552

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

644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

878 : 1, 2, 439, 878

397 : 1, 397

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 638,644,878,397, is 1.

Now, the common factors can be found like this.

638:2x 11x 29

644:2x 2x 7x 23

878:2x 439

397:397

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 = 143216009552/(1x4)

LCM = 143216009552/4

LCM = 35804002388

Thus, we can understand that the LCM of 638,644,878,397 is 35804002388.

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

• LCM of 307, 350, 219, 355
• LCM of 265, 799, 933, 142
• LCM of 648, 460, 396, 830
• LCM of 825, 845, 715, 568
• LCM of 431, 215, 169, 388

1. What is the LCM of 638, 644, 878, 397?

Answer: LCM of 638, 644, 878, 397 is 35804002388.

2. How to calculate the LCM of 638, 644, 878, 397?

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, 644, 878, 397.

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}.