Given numbers are 821,381,328,861

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

The LCM of 821,381,328,861 is 718191096.

Find LCM of 821,381,328,861 with Prime Factorization

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

3 x 41 x 821 x 127 x 8 x 7 = 718191096

Therefore, the lowest common multiple of 821,381,328,861 is 718191096.

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.

821 x 381 x 328 x 861 = 88337504808

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.

821 : 1, 821

381 : 1, 3, 127, 381

328 : 1, 2, 4, 8, 41, 82, 164, 328

861 : 1, 3, 7, 21, 41, 123, 287, 861

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 821,381,328,861, is 1.

Now, the common factors can be found like this.

821:821

381:3x 127

328:2x 2x 2x 41

861:3x 7x 41

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

3x 41 = 123

Therefore, the value for common factors is 123.

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 = 88337504808/(1x123)

LCM = 88337504808/123

LCM = 718191096

Thus, we can understand that the LCM of 821,381,328,861 is 718191096.

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

• LCM of 860, 978, 183, 560
• LCM of 654, 410, 424, 773
• LCM of 348, 900, 980, 508
• LCM of 970, 106, 988, 524
• LCM of 844, 633, 615, 345

1. What is the LCM of 821, 381, 328, 861?

Answer: LCM of 821, 381, 328, 861 is 718191096.

2. How to calculate the LCM of 821, 381, 328, 861?

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 821, 381, 328, 861.

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}.