Given numbers are 121,409,818,689

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

The LCM of 121,409,818,689 is 68195842.

Find LCM of 121,409,818,689 with Prime Factorization

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

409 x 121 x 1 x 2 x 689 = 68195842

Therefore, the lowest common multiple of 121,409,818,689 is 68195842.

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.

121 x 409 x 818 x 689 = 27892099378

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.

121 : 1, 11, 121

409 : 1, 409

818 : 1, 2, 409, 818

689 : 1, 13, 53, 689

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 121,409,818,689, is 1.

Now, the common factors can be found like this.

121:11x 11

409:409

818:2x 409

689:13x 53

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

409 = 409

Therefore, the value for common factors is 409.

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 = 27892099378/(1x409)

LCM = 27892099378/409

LCM = 68195842

Thus, we can understand that the LCM of 121,409,818,689 is 68195842.

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

• LCM of 610, 285, 995, 379
• LCM of 394, 184, 493, 301
• LCM of 697, 326, 707, 772
• LCM of 660, 796, 696, 599
• LCM of 709, 660, 551, 564

1. What is the LCM of 121, 409, 818, 689?

Answer: LCM of 121, 409, 818, 689 is 68195842.

2. How to calculate the LCM of 121, 409, 818, 689?

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 121, 409, 818, 689.

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}.