Given numbers are 645,815,946,989

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

The LCM of 645,815,946,989 is 53198310.

Find LCM of 645,815,946,989 with Prime Factorization

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

5 x 43 x 3 x 163 x 22 x 23 = 53198310

Therefore, the lowest common multiple of 645,815,946,989 is 53198310.

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.

645 x 815 x 946 x 989 = 491818375950

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.

645 : 1, 3, 5, 15, 43, 129, 215, 645

815 : 1, 5, 163, 815

946 : 1, 2, 11, 22, 43, 86, 473, 946

989 : 1, 23, 43, 989

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 645,815,946,989, is 1.

Now, the common factors can be found like this.

645:3x 5x 43

815:5x 163

946:2x 11x 43

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.

5x 43x 43 = 9245

Therefore, the value for common factors is 9245.

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 = 491818375950/(1x9245)

LCM = 491818375950/9245

LCM = 53198310

Thus, we can understand that the LCM of 645,815,946,989 is 53198310.

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

• LCM of 294, 621, 881, 983
• LCM of 521, 805, 570, 758
• LCM of 790, 991, 515, 431
• LCM of 121, 903, 444, 638
• LCM of 661, 842, 654, 870

1. What is the LCM of 645, 815, 946, 989?

Answer: LCM of 645, 815, 946, 989 is 53198310.

2. How to calculate the LCM of 645, 815, 946, 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 645, 815, 946, 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}.