Given numbers are 91,21,993

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

The LCM of 91,21,993 is 90363.

Find LCM of 91,21,993 with Prime Factorization

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

3 x 7 x 13 x 1 x 331 = 90363

Therefore, the lowest common multiple of 91,21,993 is 90363.

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.

91 x 21 x 993 = 1897623

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.

91 : 1, 7, 13, 91

21 : 1, 3, 7, 21

993 : 1, 3, 331, 993

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 91,21,993, is 1.

Now, the common factors can be found like this.

91:7x 13

21:3x 7

993:3x 331

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

3x 7 = 21

Therefore, the value for common factors is 21.

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 = 1897623/(1x21)

LCM = 1897623/21

LCM = 90363

Thus, we can understand that the LCM of 91,21,993 is 90363.

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

• LCM of 68, 94, 578
• LCM of 86, 39, 519
• LCM of 78, 92, 804
• LCM of 99, 15, 801
• LCM of 51, 55, 843

1. What is the LCM of 91, 21, 993?

Answer: LCM of 91, 21, 993 is 90363.

2. How to calculate the LCM of 91, 21, 993?

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 91, 21, 993.

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}.