Given numbers are 81,85,685

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

The LCM of 81,85,685 is 943245.

Find LCM of 81,85,685 with Prime Factorization

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

5 x 81 x 17 x 137 = 943245

Therefore, the lowest common multiple of 81,85,685 is 943245.

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.

81 x 85 x 685 = 4716225

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.

81 : 1, 3, 9, 27, 81

85 : 1, 5, 17, 85

685 : 1, 5, 137, 685

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 81,85,685, is 1.

Now, the common factors can be found like this.

81:3x 3x 3x 3

85:5x 17

685:5x 137

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 = 4716225/(1x5)

LCM = 4716225/5

LCM = 943245

Thus, we can understand that the LCM of 81,85,685 is 943245.

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

• LCM of 25, 46, 994
• LCM of 91, 78, 186
• LCM of 54, 65, 431
• LCM of 81, 89, 549
• LCM of 59, 56, 617

1. What is the LCM of 81, 85, 685?

Answer: LCM of 81, 85, 685 is 943245.

2. How to calculate the LCM of 81, 85, 685?

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 81, 85, 685.

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}.