Given numbers are 81,689,681

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

The LCM of 81,689,681 is 12668643.

Find LCM of 81,689,681 with Prime Factorization

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

3 x 27 x 689 x 227 = 12668643

Therefore, the lowest common multiple of 81,689,681 is 12668643.

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 689 x 681 = 38005929

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

689 : 1, 13, 53, 689

681 : 1, 3, 227, 681

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 81,689,681, is 1.

Now, the common factors can be found like this.

81:3x 3x 3x 3

689:13x 53

681:3x 227

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

3 = 3

Therefore, the value for common factors is 3.

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 = 38005929/(1x3)

LCM = 38005929/3

LCM = 12668643

Thus, we can understand that the LCM of 81,689,681 is 12668643.

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

• LCM of 59, 369, 327
• LCM of 69, 181, 475
• LCM of 61, 777, 238
• LCM of 87, 757, 374
• LCM of 37, 980, 285

1. What is the LCM of 81, 689, 681?

Answer: LCM of 81, 689, 681 is 12668643.

2. How to calculate the LCM of 81, 689, 681?

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, 689, 681.

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}.