Given numbers are 642,473,788,905,642

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

The LCM of 642,473,788,905,642 is 108278185620.

Find LCM of 642,473,788,905,642 with Prime Factorization

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

2 x 3 x 107 x 1 x 473 x 394 x 905 x 1 = 108278185620

Therefore, the lowest common multiple of 642,473,788,905,642 is 108278185620.

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 473 x 788 x 905 x 642 = 139029190336080

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

473 : 1, 11, 43, 473

788 : 1, 2, 4, 197, 394, 788

905 : 1, 5, 181, 905

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

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 642,473,788,905,642, is 1.

Now, the common factors can be found like this.

642:2x 3x 107

473:11x 43

788:2x 2x 197

905:5x 181

642:2x 3x 107

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 3x 107 = 1284

Therefore, the value for common factors is 1284.

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 = 139029190336080/(1x1284)

LCM = 139029190336080/1284

LCM = 108278185620

Thus, we can understand that the LCM of 642,473,788,905,642 is 108278185620.

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

• LCM of 229, 280, 662, 261, 850
• LCM of 907, 139, 652, 441, 904
• LCM of 920, 686, 278, 661, 663
• LCM of 716, 363, 130, 236, 890
• LCM of 375, 579, 277, 500, 506

1. What is the LCM of 642, 473, 788, 905, 642?

Answer: LCM of 642, 473, 788, 905, 642 is 108278185620.

2. How to calculate the LCM of 642, 473, 788, 905, 642?

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, 473, 788, 905, 642.

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}.