Given numbers are 665,817,399,87

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

The LCM of 665,817,399,87 is 2487765.

Find LCM of 665,817,399,87 with Prime Factorization

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

3 x 7 x 19 x 5 x 43 x 1 x 29 = 2487765

Therefore, the lowest common multiple of 665,817,399,87 is 2487765.

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.

665 x 817 x 399 x 87 = 18859746465

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.

665 : 1, 5, 7, 19, 35, 95, 133, 665

817 : 1, 19, 43, 817

399 : 1, 3, 7, 19, 21, 57, 133, 399

87 : 1, 3, 29, 87

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 665,817,399,87, is 1.

Now, the common factors can be found like this.

665:5x 7x 19

817:19x 43

399:3x 7x 19

87:3x 29

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

3x 7x 19x 19 = 7581

Therefore, the value for common factors is 7581.

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 = 18859746465/(1x7581)

LCM = 18859746465/7581

LCM = 2487765

Thus, we can understand that the LCM of 665,817,399,87 is 2487765.

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

• LCM of 674, 888, 870, 49
• LCM of 297, 787, 108, 63
• LCM of 464, 656, 867, 47
• LCM of 853, 452, 732, 69
• LCM of 755, 835, 243, 80

1. What is the LCM of 665, 817, 399, 87?

Answer: LCM of 665, 817, 399, 87 is 2487765.

2. How to calculate the LCM of 665, 817, 399, 87?

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 665, 817, 399, 87.

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}.