Given numbers are 644,655,314,990

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

The LCM of 644,655,314,990 is 6556348260.

Find LCM of 644,655,314,990 with Prime Factorization

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

2 x 5 x 322 x 131 x 157 x 99 = 6556348260

Therefore, the lowest common multiple of 644,655,314,990 is 6556348260.

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.

644 x 655 x 314 x 990 = 131126965200

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.

644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

655 : 1, 5, 131, 655

314 : 1, 2, 157, 314

990 : 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 644,655,314,990, is 1.

Now, the common factors can be found like this.

644:2x 2x 7x 23

655:5x 131

314:2x 157

990:2x 3x 3x 5x 11

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

2x 2x 5 = 20

Therefore, the value for common factors is 20.

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 = 131126965200/(1x20)

LCM = 131126965200/20

LCM = 6556348260

Thus, we can understand that the LCM of 644,655,314,990 is 6556348260.

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

• LCM of 965, 961, 101, 361
• LCM of 898, 729, 814, 787
• LCM of 884, 967, 816, 409
• LCM of 505, 143, 842, 659
• LCM of 553, 290, 898, 351

1. What is the LCM of 644, 655, 314, 990?

Answer: LCM of 644, 655, 314, 990 is 6556348260.

2. How to calculate the LCM of 644, 655, 314, 990?

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 644, 655, 314, 990.

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}.