Given numbers are 821,15,943,644

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

The LCM of 821,15,943,644 is 325165260.

Find LCM of 821,15,943,644 with Prime Factorization

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

23 x 821 x 15 x 41 x 28 = 325165260

Therefore, the lowest common multiple of 821,15,943,644 is 325165260.

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 15 x 943 x 644 = 7478800980

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

15 : 1, 3, 5, 15

943 : 1, 23, 41, 943

644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 821,15,943,644, is 1.

Now, the common factors can be found like this.

821:821

15:3x 5

943:23x 41

644:2x 2x 7x 23

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

23 = 23

Therefore, the value for common factors is 23.

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 = 7478800980/(1x23)

LCM = 7478800980/23

LCM = 325165260

Thus, we can understand that the LCM of 821,15,943,644 is 325165260.

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

• LCM of 315, 92, 446, 902
• LCM of 971, 92, 989, 903
• LCM of 211, 40, 807, 182
• LCM of 287, 30, 976, 596
• LCM of 121, 68, 107, 799

1. What is the LCM of 821, 15, 943, 644?

Answer: LCM of 821, 15, 943, 644 is 325165260.

2. How to calculate the LCM of 821, 15, 943, 644?

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, 15, 943, 644.

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}.