Given numbers are 221,129,731,215

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

The LCM of 221,129,731,215 is 142545.

Find LCM of 221,129,731,215 with Prime Factorization

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

17 x 43 x 13 x 3 x 1 x 5 = 142545

Therefore, the lowest common multiple of 221,129,731,215 is 142545.

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.

221 x 129 x 731 x 215 = 4480616985

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.

221 : 1, 13, 17, 221

129 : 1, 3, 43, 129

731 : 1, 17, 43, 731

215 : 1, 5, 43, 215

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 221,129,731,215, is 1.

Now, the common factors can be found like this.

221:13x 17

129:3x 43

731:17x 43

215:5x 43

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

17x 43x 43 = 31433

Therefore, the value for common factors is 31433.

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 = 4480616985/(1x31433)

LCM = 4480616985/31433

LCM = 142545

Thus, we can understand that the LCM of 221,129,731,215 is 142545.

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

• LCM of 798, 965, 148, 843
• LCM of 941, 971, 740, 919
• LCM of 776, 468, 642, 816
• LCM of 749, 754, 301, 412
• LCM of 531, 596, 733, 738

1. What is the LCM of 221, 129, 731, 215?

Answer: LCM of 221, 129, 731, 215 is 142545.

2. How to calculate the LCM of 221, 129, 731, 215?

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 221, 129, 731, 215.

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}.