Given numbers are 161,642,452,391

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

The LCM of 161,642,452,391 is 397116804.

Find LCM of 161,642,452,391 with Prime Factorization

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

2 x 23 x 7 x 321 x 226 x 17 = 397116804

Therefore, the lowest common multiple of 161,642,452,391 is 397116804.

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.

161 x 642 x 452 x 391 = 18267372984

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.

161 : 1, 7, 23, 161

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

452 : 1, 2, 4, 113, 226, 452

391 : 1, 17, 23, 391

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 161,642,452,391, is 1.

Now, the common factors can be found like this.

161:7x 23

642:2x 3x 107

452:2x 2x 113

391:17x 23

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

2x 23 = 46

Therefore, the value for common factors is 46.

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 = 18267372984/(1x46)

LCM = 18267372984/46

LCM = 397116804

Thus, we can understand that the LCM of 161,642,452,391 is 397116804.

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

• LCM of 514, 728, 877, 406
• LCM of 756, 520, 557, 245
• LCM of 341, 492, 464, 199
• LCM of 220, 108, 808, 281
• LCM of 927, 200, 532, 780

1. What is the LCM of 161, 642, 452, 391?

Answer: LCM of 161, 642, 452, 391 is 397116804.

2. How to calculate the LCM of 161, 642, 452, 391?

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 161, 642, 452, 391.

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}.