Given numbers are 820,242,781,257

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

The LCM of 820,242,781,257 is 1810467340.

Find LCM of 820,242,781,257 with Prime Factorization

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

2 x 11 x 410 x 11 x 71 x 257 = 1810467340

Therefore, the lowest common multiple of 820,242,781,257 is 1810467340.

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.

820 x 242 x 781 x 257 = 39830281480

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.

820 : 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820

242 : 1, 2, 11, 22, 121, 242

781 : 1, 11, 71, 781

257 : 1, 257

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 820,242,781,257, is 1.

Now, the common factors can be found like this.

820:2x 2x 5x 41

242:2x 11x 11

781:11x 71

257:257

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

2x 11 = 22

Therefore, the value for common factors is 22.

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 = 39830281480/(1x22)

LCM = 39830281480/22

LCM = 1810467340

Thus, we can understand that the LCM of 820,242,781,257 is 1810467340.

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

• LCM of 932, 577, 340, 918
• LCM of 458, 418, 394, 698
• LCM of 509, 557, 373, 416
• LCM of 632, 443, 729, 648
• LCM of 634, 304, 365, 144

1. What is the LCM of 820, 242, 781, 257?

Answer: LCM of 820, 242, 781, 257 is 1810467340.

2. How to calculate the LCM of 820, 242, 781, 257?

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 820, 242, 781, 257.

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}.