Given numbers are 669,40,815

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

The LCM of 669,40,815 is 4361880.

Find LCM of 669,40,815 with Prime Factorization

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

5 x 669 x 8 x 163 = 4361880

Therefore, the lowest common multiple of 669,40,815 is 4361880.

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.

669 x 40 x 815 = 21809400

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.

669 : 1, 3, 223, 669

40 : 1, 2, 4, 5, 8, 10, 20, 40

815 : 1, 5, 163, 815

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 669,40,815, is 1.

Now, the common factors can be found like this.

669:3x 223

40:2x 2x 2x 5

815:5x 163

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

5 = 5

Therefore, the value for common factors is 5.

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 = 21809400/(1x5)

LCM = 21809400/5

LCM = 4361880

Thus, we can understand that the LCM of 669,40,815 is 4361880.

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

• LCM of 413, 42, 199
• LCM of 712, 71, 945
• LCM of 359, 90, 168
• LCM of 685, 90, 562
• LCM of 570, 37, 807

1. What is the LCM of 669, 40, 815?

Answer: LCM of 669, 40, 815 is 4361880.

2. How to calculate the LCM of 669, 40, 815?

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 669, 40, 815.

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}.