Given numbers are 731,21,159

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

The LCM of 731,21,159 is 813603.

Find LCM of 731,21,159 with Prime Factorization

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

3 x 731 x 7 x 53 = 813603

Therefore, the lowest common multiple of 731,21,159 is 813603.

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.

731 x 21 x 159 = 2440809

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.

731 : 1, 17, 43, 731

21 : 1, 3, 7, 21

159 : 1, 3, 53, 159

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 731,21,159, is 1.

Now, the common factors can be found like this.

731:17x 43

21:3x 7

159:3x 53

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

3 = 3

Therefore, the value for common factors is 3.

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 = 2440809/(1x3)

LCM = 2440809/3

LCM = 813603

Thus, we can understand that the LCM of 731,21,159 is 813603.

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

• LCM of 687, 90, 921
• LCM of 180, 81, 123
• LCM of 775, 25, 824
• LCM of 788, 89, 181
• LCM of 574, 41, 322

1. What is the LCM of 731, 21, 159?

Answer: LCM of 731, 21, 159 is 813603.

2. How to calculate the LCM of 731, 21, 159?

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 731, 21, 159.

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}.