Given numbers are 642,214,836,257

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

The LCM of 642,214,836,257 is 68967492.

Find LCM of 642,214,836,257 with Prime Factorization

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

2 x 107 x 3 x 1 x 418 x 257 = 68967492

Therefore, the lowest common multiple of 642,214,836,257 is 68967492.

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.

642 x 214 x 836 x 257 = 29518086576

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.

642 : 1, 2, 3, 6, 107, 214, 321, 642

214 : 1, 2, 107, 214

836 : 1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 836

257 : 1, 257

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 642,214,836,257, is 1.

Now, the common factors can be found like this.

642:2x 3x 107

214:2x 107

836:2x 2x 11x 19

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 2x 107 = 428

Therefore, the value for common factors is 428.

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 = 29518086576/(1x428)

LCM = 29518086576/428

LCM = 68967492

Thus, we can understand that the LCM of 642,214,836,257 is 68967492.

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

• LCM of 907, 266, 968, 648
• LCM of 882, 303, 393, 691
• LCM of 421, 285, 271, 459
• LCM of 549, 970, 420, 567
• LCM of 120, 494, 761, 391

1. What is the LCM of 642, 214, 836, 257?

Answer: LCM of 642, 214, 836, 257 is 68967492.

2. How to calculate the LCM of 642, 214, 836, 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 642, 214, 836, 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}.