Given numbers are 121,213,213,643

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

The LCM of 121,213,213,643 is 16572039.

Find LCM of 121,213,213,643 with Prime Factorization

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

3 x 71 x 121 x 1 x 1 x 643 = 16572039

Therefore, the lowest common multiple of 121,213,213,643 is 16572039.

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.

121 x 213 x 213 x 643 = 3529844307

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.

121 : 1, 11, 121

213 : 1, 3, 71, 213

213 : 1, 3, 71, 213

643 : 1, 643

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 121,213,213,643, is 1.

Now, the common factors can be found like this.

121:11x 11

213:3x 71

213:3x 71

643:643

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

3x 71 = 213

Therefore, the value for common factors is 213.

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 = 3529844307/(1x213)

LCM = 3529844307/213

LCM = 16572039

Thus, we can understand that the LCM of 121,213,213,643 is 16572039.

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

• LCM of 256, 496, 258, 956
• LCM of 951, 706, 249, 820
• LCM of 446, 220, 701, 345
• LCM of 702, 857, 175, 759
• LCM of 938, 660, 874, 283

1. What is the LCM of 121, 213, 213, 643?

Answer: LCM of 121, 213, 213, 643 is 16572039.

2. How to calculate the LCM of 121, 213, 213, 643?

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 121, 213, 213, 643.

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}.