Given numbers are 671,172,817,821

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

The LCM of 671,172,817,821 is 1800311788.

Find LCM of 671,172,817,821 with Prime Factorization

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

43 x 671 x 4 x 19 x 821 = 1800311788

Therefore, the lowest common multiple of 671,172,817,821 is 1800311788.

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.

671 x 172 x 817 x 821 = 77413406884

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.

671 : 1, 11, 61, 671

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

817 : 1, 19, 43, 817

821 : 1, 821

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 671,172,817,821, is 1.

Now, the common factors can be found like this.

671:11x 61

172:2x 2x 43

817:19x 43

821:821

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

43 = 43

Therefore, the value for common factors is 43.

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 = 77413406884/(1x43)

LCM = 77413406884/43

LCM = 1800311788

Thus, we can understand that the LCM of 671,172,817,821 is 1800311788.

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

• LCM of 381, 298, 505, 352
• LCM of 427, 214, 469, 449
• LCM of 959, 977, 165, 142
• LCM of 517, 908, 289, 289
• LCM of 860, 105, 432, 424

1. What is the LCM of 671, 172, 817, 821?

Answer: LCM of 671, 172, 817, 821 is 1800311788.

2. How to calculate the LCM of 671, 172, 817, 821?

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 671, 172, 817, 821.

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}.