Given numbers are 821,669,669,657

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

The LCM of 821,669,669,657 is 120285531.

Find LCM of 821,669,669,657 with Prime Factorization

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

3 x 223 x 821 x 1 x 1 x 219 = 120285531

Therefore, the lowest common multiple of 821,669,669,657 is 120285531.

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 669 x 669 x 657 = 241413060717

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

669 : 1, 3, 223, 669

669 : 1, 3, 223, 669

657 : 1, 3, 9, 73, 219, 657

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 821,669,669,657, is 1.

Now, the common factors can be found like this.

821:821

669:3x 223

669:3x 223

657:3x 3x 73

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

3x 3x 223 = 2007

Therefore, the value for common factors is 2007.

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 = 241413060717/(1x2007)

LCM = 241413060717/2007

LCM = 120285531

Thus, we can understand that the LCM of 821,669,669,657 is 120285531.

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

• LCM of 285, 654, 337, 774
• LCM of 127, 445, 747, 496
• LCM of 773, 122, 906, 661
• LCM of 754, 603, 555, 500
• LCM of 378, 365, 735, 754

1. What is the LCM of 821, 669, 669, 657?

Answer: LCM of 821, 669, 669, 657 is 120285531.

2. How to calculate the LCM of 821, 669, 669, 657?

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, 669, 669, 657.

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}.