Given numbers are 661,238,221

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

The LCM of 661,238,221 is 2045134.

Find LCM of 661,238,221 with Prime Factorization

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

17 x 661 x 14 x 13 = 2045134

Therefore, the lowest common multiple of 661,238,221 is 2045134.

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.

661 x 238 x 221 = 34767278

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.

661 : 1, 661

238 : 1, 2, 7, 14, 17, 34, 119, 238

221 : 1, 13, 17, 221

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 661,238,221, is 1.

Now, the common factors can be found like this.

661:661

238:2x 7x 17

221:13x 17

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

17 = 17

Therefore, the value for common factors is 17.

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 = 34767278/(1x17)

LCM = 34767278/17

LCM = 2045134

Thus, we can understand that the LCM of 661,238,221 is 2045134.

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

• LCM of 666, 376, 797
• LCM of 675, 618, 832
• LCM of 877, 129, 948
• LCM of 137, 103, 158
• LCM of 881, 741, 352

1. What is the LCM of 661, 238, 221?

Answer: LCM of 661, 238, 221 is 2045134.

2. How to calculate the LCM of 661, 238, 221?

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 661, 238, 221.

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}.