Given numbers are 22,87,55,721

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

The LCM of 22,87,55,721 is 6899970.

Find LCM of 22,87,55,721 with Prime Factorization

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

11 x 2 x 87 x 5 x 721 = 6899970

Therefore, the lowest common multiple of 22,87,55,721 is 6899970.

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.

22 x 87 x 55 x 721 = 75899670

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.

22 : 1, 2, 11, 22

87 : 1, 3, 29, 87

55 : 1, 5, 11, 55

721 : 1, 7, 103, 721

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 22,87,55,721, is 1.

Now, the common factors can be found like this.

22:2x 11

87:3x 29

55:5x 11

721:7x 103

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

11 = 11

Therefore, the value for common factors is 11.

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 = 75899670/(1x11)

LCM = 75899670/11

LCM = 6899970

Thus, we can understand that the LCM of 22,87,55,721 is 6899970.

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

• LCM of 18, 61, 18, 303
• LCM of 62, 70, 96, 316
• LCM of 78, 73, 64, 589
• LCM of 91, 78, 31, 766
• LCM of 94, 96, 34, 416

1. What is the LCM of 22, 87, 55, 721?

Answer: LCM of 22, 87, 55, 721 is 6899970.

2. How to calculate the LCM of 22, 87, 55, 721?

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 22, 87, 55, 721.

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}.