Given numbers are 643,415,194,438

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

The LCM of 643,415,194,438 is 11337176670.

Find LCM of 643,415,194,438 with Prime Factorization

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

2 x 643 x 415 x 97 x 219 = 11337176670

Therefore, the lowest common multiple of 643,415,194,438 is 11337176670.

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 415 x 194 x 438 = 22674353340

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

415 : 1, 5, 83, 415

194 : 1, 2, 97, 194

438 : 1, 2, 3, 6, 73, 146, 219, 438

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 643,415,194,438, is 1.

Now, the common factors can be found like this.

643:643

415:5x 83

194:2x 97

438:2x 3x 73

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

2 = 2

Therefore, the value for common factors is 2.

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 = 22674353340/(1x2)

LCM = 22674353340/2

LCM = 11337176670

Thus, we can understand that the LCM of 643,415,194,438 is 11337176670.

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

• LCM of 575, 736, 267, 523
• LCM of 596, 159, 911, 611
• LCM of 504, 822, 765, 954
• LCM of 635, 616, 275, 782
• LCM of 476, 918, 846, 814

1. What is the LCM of 643, 415, 194, 438?

Answer: LCM of 643, 415, 194, 438 is 11337176670.

2. How to calculate the LCM of 643, 415, 194, 438?

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, 415, 194, 438.

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}.