Given numbers are 642,421,418,492

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

The LCM of 642,421,418,492 is 4632092916.

Find LCM of 642,421,418,492 with Prime Factorization

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

2 x 3 x 107 x 421 x 209 x 82 = 4632092916

Therefore, the lowest common multiple of 642,421,418,492 is 4632092916.

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 421 x 418 x 492 = 55585114992

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

421 : 1, 421

418 : 1, 2, 11, 19, 22, 38, 209, 418

492 : 1, 2, 3, 4, 6, 12, 41, 82, 123, 164, 246, 492

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 642,421,418,492, is 1.

Now, the common factors can be found like this.

642:2x 3x 107

421:421

418:2x 11x 19

492:2x 2x 3x 41

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 3 = 12

Therefore, the value for common factors is 12.

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 = 55585114992/(1x12)

LCM = 55585114992/12

LCM = 4632092916

Thus, we can understand that the LCM of 642,421,418,492 is 4632092916.

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

• LCM of 563, 301, 602, 726
• LCM of 549, 422, 875, 281
• LCM of 195, 640, 681, 467
• LCM of 939, 991, 448, 602
• LCM of 529, 868, 164, 541

1. What is the LCM of 642, 421, 418, 492?

Answer: LCM of 642, 421, 418, 492 is 4632092916.

2. How to calculate the LCM of 642, 421, 418, 492?

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, 421, 418, 492.

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}.