Given numbers are 55,55,19,99,721

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

The LCM of 55,55,19,99,721 is 6781005.

Find LCM of 55,55,19,99,721 with Prime Factorization

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

5 x 11 x 1 x 1 x 19 x 9 x 721 = 6781005

Therefore, the lowest common multiple of 55,55,19,99,721 is 6781005.

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.

55 x 55 x 19 x 99 x 721 = 4102508025

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.

55 : 1, 5, 11, 55

55 : 1, 5, 11, 55

19 : 1, 19

99 : 1, 3, 9, 11, 33, 99

721 : 1, 7, 103, 721

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 55,55,19,99,721, is 1.

Now, the common factors can be found like this.

55:5x 11

55:5x 11

19:19

99:3x 3x 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.

5x 11x 11 = 605

Therefore, the value for common factors is 605.

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 = 4102508025/(1x605)

LCM = 4102508025/605

LCM = 6781005

Thus, we can understand that the LCM of 55,55,19,99,721 is 6781005.

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

• LCM of 50, 96, 75, 64, 457
• LCM of 67, 78, 32, 98, 953
• LCM of 99, 21, 25, 42, 930
• LCM of 35, 48, 82, 74, 398
• LCM of 18, 63, 58, 41, 886

1. What is the LCM of 55, 55, 19, 99, 721?

Answer: LCM of 55, 55, 19, 99, 721 is 6781005.

2. How to calculate the LCM of 55, 55, 19, 99, 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 55, 55, 19, 99, 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}.