Given numbers are 685,203,343,861

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

The LCM of 685,203,343,861 is 838084485.

Find LCM of 685,203,343,861 with Prime Factorization

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

7 x 685 x 29 x 49 x 123 = 838084485

Therefore, the lowest common multiple of 685,203,343,861 is 838084485.

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.

685 x 203 x 343 x 861 = 41066139765

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.

685 : 1, 5, 137, 685

203 : 1, 7, 29, 203

343 : 1, 7, 49, 343

861 : 1, 3, 7, 21, 41, 123, 287, 861

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 685,203,343,861, is 1.

Now, the common factors can be found like this.

685:5x 137

203:7x 29

343:7x 7x 7

861:3x 7x 41

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

7x 7 = 49

Therefore, the value for common factors is 49.

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 = 41066139765/(1x49)

LCM = 41066139765/49

LCM = 838084485

Thus, we can understand that the LCM of 685,203,343,861 is 838084485.

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

• LCM of 232, 450, 621, 681
• LCM of 721, 680, 761, 647
• LCM of 293, 535, 499, 249
• LCM of 708, 101, 642, 571
• LCM of 560, 447, 496, 923

1. What is the LCM of 685, 203, 343, 861?

Answer: LCM of 685, 203, 343, 861 is 838084485.

2. How to calculate the LCM of 685, 203, 343, 861?

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 685, 203, 343, 861.

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}.