Given numbers are 355,391,639,989

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

The LCM of 355,391,639,989 is 53717535.

Find LCM of 355,391,639,989 with Prime Factorization

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

23 x 71 x 5 x 17 x 9 x 43 = 53717535

Therefore, the lowest common multiple of 355,391,639,989 is 53717535.

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.

355 x 391 x 639 x 989 = 87720734655

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.

355 : 1, 5, 71, 355

391 : 1, 17, 23, 391

639 : 1, 3, 9, 71, 213, 639

989 : 1, 23, 43, 989

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 355,391,639,989, is 1.

Now, the common factors can be found like this.

355:5x 71

391:17x 23

639:3x 3x 71

989:23x 43

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

23x 71 = 1633

Therefore, the value for common factors is 1633.

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 = 87720734655/(1x1633)

LCM = 87720734655/1633

LCM = 53717535

Thus, we can understand that the LCM of 355,391,639,989 is 53717535.

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

• LCM of 810, 959, 716, 659
• LCM of 313, 793, 958, 232
• LCM of 169, 506, 695, 492
• LCM of 121, 878, 569, 380
• LCM of 141, 523, 151, 564

1. What is the LCM of 355, 391, 639, 989?

Answer: LCM of 355, 391, 639, 989 is 53717535.

2. How to calculate the LCM of 355, 391, 639, 989?

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 355, 391, 639, 989.

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}.