Given numbers are 990,340,643,986,221

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

The LCM of 990,340,643,986,221 is 8159554260.

Find LCM of 990,340,643,986,221 with Prime Factorization

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

2 x 5 x 17 x 99 x 2 x 643 x 29 x 13 = 8159554260

Therefore, the lowest common multiple of 990,340,643,986,221 is 8159554260.

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.

990 x 340 x 643 x 986 x 221 = 47162223622800

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.

990 : 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990

340 : 1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340

643 : 1, 643

986 : 1, 2, 17, 29, 34, 58, 493, 986

221 : 1, 13, 17, 221

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 990,340,643,986,221, is 1.

Now, the common factors can be found like this.

990:2x 3x 3x 5x 11

340:2x 2x 5x 17

643:643

986:2x 17x 29

221:13x 17

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

2x 2x 5x 17x 17 = 5780

Therefore, the value for common factors is 5780.

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 = 47162223622800/(1x5780)

LCM = 47162223622800/5780

LCM = 8159554260

Thus, we can understand that the LCM of 990,340,643,986,221 is 8159554260.

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

• LCM of 877, 946, 581, 530, 482
• LCM of 704, 723, 375, 217, 408
• LCM of 601, 222, 510, 324, 462
• LCM of 774, 627, 186, 268, 491
• LCM of 866, 680, 720, 280, 452

1. What is the LCM of 990, 340, 643, 986, 221?

Answer: LCM of 990, 340, 643, 986, 221 is 8159554260.

2. How to calculate the LCM of 990, 340, 643, 986, 221?

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 990, 340, 643, 986, 221.

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}.