Given numbers are 646,781,113,990

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

The LCM of 646,781,113,990 is 2565514710.

Find LCM of 646,781,113,990 with Prime Factorization

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

2 x 11 x 323 x 71 x 113 x 45 = 2565514710

Therefore, the lowest common multiple of 646,781,113,990 is 2565514710.

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.

646 x 781 x 113 x 990 = 56441323620

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.

646 : 1, 2, 17, 19, 34, 38, 323, 646

781 : 1, 11, 71, 781

113 : 1, 113

990 : 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 646,781,113,990, is 1.

Now, the common factors can be found like this.

646:2x 17x 19

781:11x 71

113:113

990:2x 3x 3x 5x 11

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

2x 11 = 22

Therefore, the value for common factors is 22.

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 = 56441323620/(1x22)

LCM = 56441323620/22

LCM = 2565514710

Thus, we can understand that the LCM of 646,781,113,990 is 2565514710.

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

• LCM of 254, 482, 557, 764
• LCM of 654, 873, 714, 384
• LCM of 878, 379, 792, 925
• LCM of 407, 165, 659, 196
• LCM of 889, 377, 826, 732

1. What is the LCM of 646, 781, 113, 990?

Answer: LCM of 646, 781, 113, 990 is 2565514710.

2. How to calculate the LCM of 646, 781, 113, 990?

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 646, 781, 113, 990.

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}.