Given numbers are 921,861,397,489

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

The LCM of 921,861,397,489 is 17104864497.

Find LCM of 921,861,397,489 with Prime Factorization

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

3 x 307 x 287 x 397 x 163 = 17104864497

Therefore, the lowest common multiple of 921,861,397,489 is 17104864497.

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.

921 x 861 x 397 x 489 = 153943780473

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.

921 : 1, 3, 307, 921

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

397 : 1, 397

489 : 1, 3, 163, 489

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 921,861,397,489, is 1.

Now, the common factors can be found like this.

921:3x 307

861:3x 7x 41

397:397

489:3x 163

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

3x 3 = 9

Therefore, the value for common factors is 9.

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 = 153943780473/(1x9)

LCM = 153943780473/9

LCM = 17104864497

Thus, we can understand that the LCM of 921,861,397,489 is 17104864497.

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

• LCM of 689, 829, 870, 363
• LCM of 144, 673, 941, 228
• LCM of 571, 796, 314, 264
• LCM of 632, 958, 713, 289
• LCM of 264, 636, 503, 269

1. What is the LCM of 921, 861, 397, 489?

Answer: LCM of 921, 861, 397, 489 is 17104864497.

2. How to calculate the LCM of 921, 861, 397, 489?

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 921, 861, 397, 489.

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}.