Given numbers are 209,209,421

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

The LCM of 209,209,421 is 87989.

Find LCM of 209,209,421 with Prime Factorization

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

11 x 19 x 1 x 1 x 421 = 87989

Therefore, the lowest common multiple of 209,209,421 is 87989.

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.

209 x 209 x 421 = 18389701

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.

209 : 1, 11, 19, 209

209 : 1, 11, 19, 209

421 : 1, 421

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 209,209,421, is 1.

Now, the common factors can be found like this.

209:11x 19

209:11x 19

421:421

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

11x 19 = 209

Therefore, the value for common factors is 209.

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 = 18389701/(1x209)

LCM = 18389701/209

LCM = 87989

Thus, we can understand that the LCM of 209,209,421 is 87989.

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

• LCM of 746, 397, 345
• LCM of 134, 951, 603
• LCM of 728, 293, 356
• LCM of 265, 561, 998
• LCM of 306, 517, 218

1. What is the LCM of 209, 209, 421?

Answer: LCM of 209, 209, 421 is 87989.

2. How to calculate the LCM of 209, 209, 421?

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 209, 209, 421.

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}.