Given numbers are 643,389,643,788

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

The LCM of 643,389,643,788 is 197100076.

Find LCM of 643,389,643,788 with Prime Factorization

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

643 x 1 x 389 x 1 x 788 = 197100076

Therefore, the lowest common multiple of 643,389,643,788 is 197100076.

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.

643 x 389 x 643 x 788 = 126735348868

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.

643 : 1, 643

389 : 1, 389

643 : 1, 643

788 : 1, 2, 4, 197, 394, 788

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 643,389,643,788, is 1.

Now, the common factors can be found like this.

643:643

389:389

643:643

788:2x 2x 197

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

643 = 643

Therefore, the value for common factors is 643.

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 = 126735348868/(1x643)

LCM = 126735348868/643

LCM = 197100076

Thus, we can understand that the LCM of 643,389,643,788 is 197100076.

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

• LCM of 894, 561, 827, 633
• LCM of 641, 757, 961, 517
• LCM of 958, 693, 572, 693
• LCM of 788, 877, 774, 111
• LCM of 225, 969, 884, 129

1. What is the LCM of 643, 389, 643, 788?

Answer: LCM of 643, 389, 643, 788 is 197100076.

2. How to calculate the LCM of 643, 389, 643, 788?

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 643, 389, 643, 788.

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}.