Given numbers are 647,547,421,842

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

The LCM of 647,547,421,842 is 297991378.

Find LCM of 647,547,421,842 with Prime Factorization

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

421 x 647 x 547 x 1 x 2 = 297991378

Therefore, the lowest common multiple of 647,547,421,842 is 297991378.

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.

647 x 547 x 421 x 842 = 125454370138

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.

647 : 1, 647

547 : 1, 547

421 : 1, 421

842 : 1, 2, 421, 842

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 647,547,421,842, is 1.

Now, the common factors can be found like this.

647:647

547:547

421:421

842:2x 421

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

421 = 421

Therefore, the value for common factors is 421.

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 = 125454370138/(1x421)

LCM = 125454370138/421

LCM = 297991378

Thus, we can understand that the LCM of 647,547,421,842 is 297991378.

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

• LCM of 140, 462, 979, 571
• LCM of 858, 975, 340, 870
• LCM of 728, 611, 380, 991
• LCM of 325, 903, 997, 756
• LCM of 475, 152, 229, 322

1. What is the LCM of 647, 547, 421, 842?

Answer: LCM of 647, 547, 421, 842 is 297991378.

2. How to calculate the LCM of 647, 547, 421, 842?

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 647, 547, 421, 842.

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}.