Given numbers are 644,185,356,428

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

The LCM of 644,185,356,428 is 1134570220.

Find LCM of 644,185,356,428 with Prime Factorization

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

2 x 2 x 161 x 185 x 89 x 107 = 1134570220

Therefore, the lowest common multiple of 644,185,356,428 is 1134570220.

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 185 x 356 x 428 = 18153123520

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

185 : 1, 5, 37, 185

356 : 1, 2, 4, 89, 178, 356

428 : 1, 2, 4, 107, 214, 428

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 644,185,356,428, is 1.

Now, the common factors can be found like this.

644:2x 2x 7x 23

185:5x 37

356:2x 2x 89

428:2x 2x 107

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 2x 2 = 16

Therefore, the value for common factors is 16.

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 = 18153123520/(1x16)

LCM = 18153123520/16

LCM = 1134570220

Thus, we can understand that the LCM of 644,185,356,428 is 1134570220.

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

• LCM of 261, 731, 794, 172
• LCM of 324, 464, 992, 335
• LCM of 571, 523, 703, 179
• LCM of 434, 628, 462, 353
• LCM of 207, 481, 152, 429

1. What is the LCM of 644, 185, 356, 428?

Answer: LCM of 644, 185, 356, 428 is 1134570220.

2. How to calculate the LCM of 644, 185, 356, 428?

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, 185, 356, 428.

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}.