Given numbers are 221,128,956,431

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

The LCM of 221,128,956,431 is 2913918592.

Find LCM of 221,128,956,431 with Prime Factorization

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

2 x 2 x 221 x 32 x 239 x 431 = 2913918592

Therefore, the lowest common multiple of 221,128,956,431 is 2913918592.

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.

221 x 128 x 956 x 431 = 11655674368

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.

221 : 1, 13, 17, 221

128 : 1, 2, 4, 8, 16, 32, 64, 128

956 : 1, 2, 4, 239, 478, 956

431 : 1, 431

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 221,128,956,431, is 1.

Now, the common factors can be found like this.

221:13x 17

128:2x 2x 2x 2x 2x 2x 2

956:2x 2x 239

431:431

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

2x 2 = 4

Therefore, the value for common factors is 4.

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 = 11655674368/(1x4)

LCM = 11655674368/4

LCM = 2913918592

Thus, we can understand that the LCM of 221,128,956,431 is 2913918592.

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

• LCM of 433, 364, 417, 484
• LCM of 567, 871, 973, 406
• LCM of 711, 833, 347, 966
• LCM of 797, 323, 498, 748
• LCM of 785, 448, 333, 224

1. What is the LCM of 221, 128, 956, 431?

Answer: LCM of 221, 128, 956, 431 is 2913918592.

2. How to calculate the LCM of 221, 128, 956, 431?

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 221, 128, 956, 431.

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}.