Given numbers are 638,121,209

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

The LCM of 638,121,209 is 133342.

Find LCM of 638,121,209 with Prime Factorization

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

11 x 58 x 11 x 19 = 133342

Therefore, the lowest common multiple of 638,121,209 is 133342.

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 121 x 209 = 16134382

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

121 : 1, 11, 121

209 : 1, 11, 19, 209

11 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 638,121,209, is 11.

Now, the common factors can be found like this.

638:2x 11x 29

121:11x 11

209:11x 19

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

11 = 11

Therefore, the value for common factors is 11.

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 = 16134382/(11x11)

LCM = 16134382/121

LCM = 133342

Thus, we can understand that the LCM of 638,121,209 is 133342.

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

• LCM of 169, 174, 594
• LCM of 836, 840, 344
• LCM of 115, 216, 752
• LCM of 441, 368, 255
• LCM of 660, 179, 798

1. What is the LCM of 638, 121, 209?

Answer: LCM of 638, 121, 209 is 133342.

2. How to calculate the LCM of 638, 121, 209?

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, 121, 209.

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}.