Given numbers are 438,621,209,686

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

The LCM of 438,621,209,686 is 6499573542.

Find LCM of 438,621,209,686 with Prime Factorization

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

2 x 3 x 73 x 207 x 209 x 343 = 6499573542

Therefore, the lowest common multiple of 438,621,209,686 is 6499573542.

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.

438 x 621 x 209 x 686 = 38997441252

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.

438 : 1, 2, 3, 6, 73, 146, 219, 438

621 : 1, 3, 9, 23, 27, 69, 207, 621

209 : 1, 11, 19, 209

686 : 1, 2, 7, 14, 49, 98, 343, 686

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 438,621,209,686, is 1.

Now, the common factors can be found like this.

438:2x 3x 73

621:3x 3x 3x 23

209:11x 19

686:2x 7x 7x 7

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

2x 3 = 6

Therefore, the value for common factors is 6.

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 = 38997441252/(1x6)

LCM = 38997441252/6

LCM = 6499573542

Thus, we can understand that the LCM of 438,621,209,686 is 6499573542.

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

• LCM of 517, 564, 123, 859
• LCM of 958, 199, 368, 912
• LCM of 642, 981, 978, 905
• LCM of 709, 290, 687, 277
• LCM of 309, 523, 881, 196

1. What is the LCM of 438, 621, 209, 686?

Answer: LCM of 438, 621, 209, 686 is 6499573542.

2. How to calculate the LCM of 438, 621, 209, 686?

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 438, 621, 209, 686.

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}.