Given numbers are 455,450,991,780

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

The LCM of 455,450,991,780 is 81162900.

Find LCM of 455,450,991,780 with Prime Factorization

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

2 x 3 x 5 x 13 x 7 x 15 x 991 x 2 = 81162900

Therefore, the lowest common multiple of 455,450,991,780 is 81162900.

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.

455 x 450 x 991 x 780 = 158267655000

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.

455 : 1, 5, 7, 13, 35, 65, 91, 455

450 : 1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 225, 450

991 : 1, 991

780 : 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 455,450,991,780, is 1.

Now, the common factors can be found like this.

455:5x 7x 13

450:2x 3x 3x 5x 5

991:991

780:2x 2x 3x 5x 13

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

2x 3x 5x 5x 13 = 1950

Therefore, the value for common factors is 1950.

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 = 158267655000/(1x1950)

LCM = 158267655000/1950

LCM = 81162900

Thus, we can understand that the LCM of 455,450,991,780 is 81162900.

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

• LCM of 408, 511, 502, 264
• LCM of 745, 867, 134, 565
• LCM of 741, 488, 149, 772
• LCM of 179, 475, 542, 298
• LCM of 858, 395, 128, 217

1. What is the LCM of 455, 450, 991, 780?

Answer: LCM of 455, 450, 991, 780 is 81162900.

2. How to calculate the LCM of 455, 450, 991, 780?

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 455, 450, 991, 780.

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}.