Given numbers are 645,86,205

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

The LCM of 645,86,205 is 52890.

Find LCM of 645,86,205 with Prime Factorization

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

5 x 43 x 3 x 2 x 41 = 52890

Therefore, the lowest common multiple of 645,86,205 is 52890.

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.

645 x 86 x 205 = 11371350

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.

645 : 1, 3, 5, 15, 43, 129, 215, 645

86 : 1, 2, 43, 86

205 : 1, 5, 41, 205

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 645,86,205, is 1.

Now, the common factors can be found like this.

645:3x 5x 43

86:2x 43

205:5x 41

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

5x 43 = 215

Therefore, the value for common factors is 215.

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 = 11371350/(1x215)

LCM = 11371350/215

LCM = 52890

Thus, we can understand that the LCM of 645,86,205 is 52890.

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

• LCM of 318, 94, 611
• LCM of 122, 62, 756
• LCM of 742, 93, 935
• LCM of 808, 63, 136
• LCM of 131, 14, 543

1. What is the LCM of 645, 86, 205?

Answer: LCM of 645, 86, 205 is 52890.

2. How to calculate the LCM of 645, 86, 205?

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 645, 86, 205.

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}.