Given numbers are 685,685,471,721

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

The LCM of 685,685,471,721 is 232619835.

Find LCM of 685,685,471,721 with Prime Factorization

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

5 x 137 x 1 x 1 x 471 x 721 = 232619835

Therefore, the lowest common multiple of 685,685,471,721 is 232619835.

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 685 x 471 x 721 = 159344586975

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

685 : 1, 5, 137, 685

471 : 1, 3, 157, 471

721 : 1, 7, 103, 721

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 685,685,471,721, is 1.

Now, the common factors can be found like this.

685:5x 137

685:5x 137

471:3x 157

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 137 = 685

Therefore, the value for common factors is 685.

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 = 159344586975/(1x685)

LCM = 159344586975/685

LCM = 232619835

Thus, we can understand that the LCM of 685,685,471,721 is 232619835.

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

• LCM of 245, 432, 623, 844
• LCM of 421, 188, 600, 172
• LCM of 301, 953, 446, 124
• LCM of 648, 698, 408, 105
• LCM of 346, 248, 322, 698

1. What is the LCM of 685, 685, 471, 721?

Answer: LCM of 685, 685, 471, 721 is 232619835.

2. How to calculate the LCM of 685, 685, 471, 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 685, 685, 471, 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}.