Given numbers are 642,291,516,172

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

The LCM of 642,291,516,172 is 5355564.

Find LCM of 642,291,516,172 with Prime Factorization

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

2 x 2 x 3 x 43 x 107 x 97 x 1 x 1 = 5355564

Therefore, the lowest common multiple of 642,291,516,172 is 5355564.

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 291 x 516 x 172 = 16580826144

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

291 : 1, 3, 97, 291

516 : 1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516

172 : 1, 2, 4, 43, 86, 172

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 642,291,516,172, is 1.

Now, the common factors can be found like this.

642:2x 3x 107

291:3x 97

516:2x 2x 3x 43

172:2x 2x 43

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 2x 3x 3x 43 = 3096

Therefore, the value for common factors is 3096.

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 = 16580826144/(1x3096)

LCM = 16580826144/3096

LCM = 5355564

Thus, we can understand that the LCM of 642,291,516,172 is 5355564.

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

• LCM of 920, 532, 777, 147
• LCM of 678, 186, 262, 839
• LCM of 470, 845, 855, 469
• LCM of 814, 677, 425, 249
• LCM of 254, 937, 518, 901

1. What is the LCM of 642, 291, 516, 172?

Answer: LCM of 642, 291, 516, 172 is 5355564.

2. How to calculate the LCM of 642, 291, 516, 172?

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, 291, 516, 172.

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}.