Given numbers are 247,381,840,551,621

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

The LCM of 247,381,840,551,621 is 158178809880.

Find LCM of 247,381,840,551,621 with Prime Factorization

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

3 x 19 x 13 x 127 x 280 x 29 x 207 = 158178809880

Therefore, the lowest common multiple of 247,381,840,551,621 is 158178809880.

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.

247 x 381 x 840 x 551 x 621 = 27048576489480

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.

247 : 1, 13, 19, 247

381 : 1, 3, 127, 381

840 : 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840

551 : 1, 19, 29, 551

621 : 1, 3, 9, 23, 27, 69, 207, 621

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 247,381,840,551,621, is 1.

Now, the common factors can be found like this.

247:13x 19

381:3x 127

840:2x 2x 2x 3x 5x 7

551:19x 29

621:3x 3x 3x 23

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

3x 3x 19 = 171

Therefore, the value for common factors is 171.

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 = 27048576489480/(1x171)

LCM = 27048576489480/171

LCM = 158178809880

Thus, we can understand that the LCM of 247,381,840,551,621 is 158178809880.

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

• LCM of 406, 590, 728, 607, 927
• LCM of 458, 967, 193, 627, 685
• LCM of 353, 670, 191, 459, 281
• LCM of 109, 629, 369, 907, 385
• LCM of 564, 786, 800, 554, 451

1. What is the LCM of 247, 381, 840, 551, 621?

Answer: LCM of 247, 381, 840, 551, 621 is 158178809880.

2. How to calculate the LCM of 247, 381, 840, 551, 621?

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 247, 381, 840, 551, 621.

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}.