Given numbers are 391,407,638,149

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

The LCM of 391,407,638,149 is 1375261954.

Find LCM of 391,407,638,149 with Prime Factorization

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

11 x 391 x 37 x 58 x 149 = 1375261954

Therefore, the lowest common multiple of 391,407,638,149 is 1375261954.

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.

391 x 407 x 638 x 149 = 15127881494

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.

391 : 1, 17, 23, 391

407 : 1, 11, 37, 407

638 : 1, 2, 11, 22, 29, 58, 319, 638

149 : 1, 149

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 391,407,638,149, is 1.

Now, the common factors can be found like this.

391:17x 23

407:11x 37

638:2x 11x 29

149:149

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

11 = 11

Therefore, the value for common factors is 11.

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 = 15127881494/(1x11)

LCM = 15127881494/11

LCM = 1375261954

Thus, we can understand that the LCM of 391,407,638,149 is 1375261954.

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

• LCM of 719, 683, 738, 309
• LCM of 151, 743, 763, 363
• LCM of 729, 543, 649, 598
• LCM of 333, 955, 239, 124
• LCM of 179, 712, 522, 938

1. What is the LCM of 391, 407, 638, 149?

Answer: LCM of 391, 407, 638, 149 is 1375261954.

2. How to calculate the LCM of 391, 407, 638, 149?

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 391, 407, 638, 149.

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}.