Given numbers are 268,138,391,521

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

The LCM of 268,138,391,521 is 163783644.

Find LCM of 268,138,391,521 with Prime Factorization

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

2 x 23 x 134 x 3 x 17 x 521 = 163783644

Therefore, the lowest common multiple of 268,138,391,521 is 163783644.

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.

268 x 138 x 391 x 521 = 7534047624

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.

268 : 1, 2, 4, 67, 134, 268

138 : 1, 2, 3, 6, 23, 46, 69, 138

391 : 1, 17, 23, 391

521 : 1, 521

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 268,138,391,521, is 1.

Now, the common factors can be found like this.

268:2x 2x 67

138:2x 3x 23

391:17x 23

521:521

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 = 7534047624/(1x46)

LCM = 7534047624/46

LCM = 163783644

Thus, we can understand that the LCM of 268,138,391,521 is 163783644.

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

• LCM of 268, 282, 323, 579
• LCM of 963, 238, 185, 569
• LCM of 345, 912, 423, 439
• LCM of 492, 695, 303, 241
• LCM of 166, 834, 606, 914

1. What is the LCM of 268, 138, 391, 521?

Answer: LCM of 268, 138, 391, 521 is 163783644.

2. How to calculate the LCM of 268, 138, 391, 521?

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 268, 138, 391, 521.

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}.