Given numbers are 643,643,373,645

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

The LCM of 643,643,373,645 is 154696155.

Find LCM of 643,643,373,645 with Prime Factorization

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

643 x 1 x 1 x 373 x 645 = 154696155

Therefore, the lowest common multiple of 643,643,373,645 is 154696155.

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 643 x 373 x 645 = 99469627665

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

643 : 1, 643

373 : 1, 373

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

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 643,643,373,645, is 1.

Now, the common factors can be found like this.

643:643

643:643

373:373

645:3x 5x 43

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 = 99469627665/(1x643)

LCM = 99469627665/643

LCM = 154696155

Thus, we can understand that the LCM of 643,643,373,645 is 154696155.

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

• LCM of 912, 978, 152, 578
• LCM of 598, 927, 532, 554
• LCM of 300, 561, 437, 639
• LCM of 242, 203, 560, 181
• LCM of 888, 793, 425, 321

1. What is the LCM of 643, 643, 373, 645?

Answer: LCM of 643, 643, 373, 645 is 154696155.

2. How to calculate the LCM of 643, 643, 373, 645?

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, 643, 373, 645.

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}.