Given numbers are 280,438,257,497

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

The LCM of 280,438,257,497 is 1118906040.

Find LCM of 280,438,257,497 with Prime Factorization

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

2 x 7 x 20 x 219 x 257 x 71 = 1118906040

Therefore, the lowest common multiple of 280,438,257,497 is 1118906040.

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.

280 x 438 x 257 x 497 = 15664684560

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.

280 : 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280

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

257 : 1, 257

497 : 1, 7, 71, 497

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 280,438,257,497, is 1.

Now, the common factors can be found like this.

280:2x 2x 2x 5x 7

438:2x 3x 73

257:257

497:7x 71

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

2x 7 = 14

Therefore, the value for common factors is 14.

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 = 15664684560/(1x14)

LCM = 15664684560/14

LCM = 1118906040

Thus, we can understand that the LCM of 280,438,257,497 is 1118906040.

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

• LCM of 374, 265, 633, 578
• LCM of 935, 871, 851, 673
• LCM of 623, 162, 824, 373
• LCM of 430, 190, 874, 773
• LCM of 181, 802, 546, 302

1. What is the LCM of 280, 438, 257, 497?

Answer: LCM of 280, 438, 257, 497 is 1118906040.

2. How to calculate the LCM of 280, 438, 257, 497?

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 280, 438, 257, 497.

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}.