Given numbers are 418,380,781,456

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

The LCM of 418,380,781,456 is 1780680.

Find LCM of 418,380,781,456 with Prime Factorization

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

2 x 2 x 11 x 19 x 1 x 5 x 71 x 6 = 1780680

Therefore, the lowest common multiple of 418,380,781,456 is 1780680.

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.

418 x 380 x 781 x 456 = 56568642240

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.

418 : 1, 2, 11, 19, 22, 38, 209, 418

380 : 1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380

781 : 1, 11, 71, 781

456 : 1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 228, 456

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 418,380,781,456, is 1.

Now, the common factors can be found like this.

418:2x 11x 19

380:2x 2x 5x 19

781:11x 71

456:2x 2x 2x 3x 19

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

2x 2x 2x 11x 19x 19 = 31768

Therefore, the value for common factors is 31768.

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 = 56568642240/(1x31768)

LCM = 56568642240/31768

LCM = 1780680

Thus, we can understand that the LCM of 418,380,781,456 is 1780680.

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

• LCM of 567, 459, 598, 904
• LCM of 226, 398, 123, 677
• LCM of 826, 204, 781, 219
• LCM of 742, 468, 686, 820
• LCM of 231, 672, 400, 335

1. What is the LCM of 418, 380, 781, 456?

Answer: LCM of 418, 380, 781, 456 is 1780680.

2. How to calculate the LCM of 418, 380, 781, 456?

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 418, 380, 781, 456.

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}.