Given numbers are 645,473,728,669

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

The LCM of 645,473,728,669 is 1151830680.

Find LCM of 645,473,728,669 with Prime Factorization

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

3 x 43 x 5 x 11 x 728 x 223 = 1151830680

Therefore, the lowest common multiple of 645,473,728,669 is 1151830680.

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 473 x 728 x 669 = 148586157720

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

473 : 1, 11, 43, 473

728 : 1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728

669 : 1, 3, 223, 669

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 645,473,728,669, is 1.

Now, the common factors can be found like this.

645:3x 5x 43

473:11x 43

728:2x 2x 2x 7x 13

669:3x 223

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

3x 43 = 129

Therefore, the value for common factors is 129.

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 = 148586157720/(1x129)

LCM = 148586157720/129

LCM = 1151830680

Thus, we can understand that the LCM of 645,473,728,669 is 1151830680.

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

• LCM of 635, 275, 890, 462
• LCM of 702, 671, 574, 693
• LCM of 161, 335, 308, 546
• LCM of 264, 982, 411, 928
• LCM of 276, 394, 500, 173

1. What is the LCM of 645, 473, 728, 669?

Answer: LCM of 645, 473, 728, 669 is 1151830680.

2. How to calculate the LCM of 645, 473, 728, 669?

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, 473, 728, 669.

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}.