Given numbers are 721,447,755,728,387

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

The LCM of 721,447,755,728,387 is 3264470805960.

Find LCM of 721,447,755,728,387 with Prime Factorization

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

3 x 7 x 103 x 149 x 755 x 104 x 129 = 3264470805960

Therefore, the lowest common multiple of 721,447,755,728,387 is 3264470805960.

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.

721 x 447 x 755 x 728 x 387 = 68553886925160

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.

721 : 1, 7, 103, 721

447 : 1, 3, 149, 447

755 : 1, 5, 151, 755

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

387 : 1, 3, 9, 43, 129, 387

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 721,447,755,728,387, is 1.

Now, the common factors can be found like this.

721:7x 103

447:3x 149

755:5x 151

728:2x 2x 2x 7x 13

387:3x 3x 43

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

3x 7 = 21

Therefore, the value for common factors is 21.

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 = 68553886925160/(1x21)

LCM = 68553886925160/21

LCM = 3264470805960

Thus, we can understand that the LCM of 721,447,755,728,387 is 3264470805960.

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

• LCM of 514, 765, 885, 625, 869
• LCM of 450, 610, 693, 546, 580
• LCM of 390, 669, 392, 962, 764
• LCM of 679, 614, 392, 200, 718
• LCM of 848, 913, 119, 305, 836

1. What is the LCM of 721, 447, 755, 728, 387?

Answer: LCM of 721, 447, 755, 728, 387 is 3264470805960.

2. How to calculate the LCM of 721, 447, 755, 728, 387?

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 721, 447, 755, 728, 387.

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}.