Given numbers are 905,380,138,781

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

The LCM of 905,380,138,781 is 3706485420.

Find LCM of 905,380,138,781 with Prime Factorization

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

2 x 5 x 181 x 38 x 69 x 781 = 3706485420

Therefore, the lowest common multiple of 905,380,138,781 is 3706485420.

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.

905 x 380 x 138 x 781 = 37064854200

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.

905 : 1, 5, 181, 905

380 : 1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380

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

781 : 1, 11, 71, 781

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 905,380,138,781, is 1.

Now, the common factors can be found like this.

905:5x 181

380:2x 2x 5x 19

138:2x 3x 23

781:11x 71

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

2x 5 = 10

Therefore, the value for common factors is 10.

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 = 37064854200/(1x10)

LCM = 37064854200/10

LCM = 3706485420

Thus, we can understand that the LCM of 905,380,138,781 is 3706485420.

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

• LCM of 724, 543, 233, 760
• LCM of 118, 981, 447, 633
• LCM of 194, 605, 791, 777
• LCM of 465, 198, 433, 614
• LCM of 213, 789, 121, 377

1. What is the LCM of 905, 380, 138, 781?

Answer: LCM of 905, 380, 138, 781 is 3706485420.

2. How to calculate the LCM of 905, 380, 138, 781?

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 905, 380, 138, 781.

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}.