Given numbers are 247,365,664,642

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

The LCM of 247,365,664,642 is 19215997320.

Find LCM of 247,365,664,642 with Prime Factorization

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

2 x 247 x 365 x 332 x 321 = 19215997320

Therefore, the lowest common multiple of 247,365,664,642 is 19215997320.

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.

247 x 365 x 664 x 642 = 38431994640

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.

247 : 1, 13, 19, 247

365 : 1, 5, 73, 365

664 : 1, 2, 4, 8, 83, 166, 332, 664

642 : 1, 2, 3, 6, 107, 214, 321, 642

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 247,365,664,642, is 1.

Now, the common factors can be found like this.

247:13x 19

365:5x 73

664:2x 2x 2x 83

642:2x 3x 107

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

2 = 2

Therefore, the value for common factors is 2.

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 = 38431994640/(1x2)

LCM = 38431994640/2

LCM = 19215997320

Thus, we can understand that the LCM of 247,365,664,642 is 19215997320.

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

• LCM of 484, 408, 325, 613
• LCM of 503, 266, 384, 201
• LCM of 340, 666, 283, 459
• LCM of 872, 320, 271, 912
• LCM of 437, 886, 170, 604

1. What is the LCM of 247, 365, 664, 642?

Answer: LCM of 247, 365, 664, 642 is 19215997320.

2. How to calculate the LCM of 247, 365, 664, 642?

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 247, 365, 664, 642.

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}.