There is no such formula. Rectangular numbers are composite numbers and there is no known formula that will generate either composite numbers or prime numbers.
42
101
Rectangular numbers are numbers that can be represented as a rectangle with a whole number of rows and columns. In this case, the rectangular numbers between 11 and 17 are 12 and 16. The number 12 can be represented as a 3x4 rectangle, and the number 16 can be represented as a 4x4 square.
50th or Fiftieth Ordinal numbers are just numbers that identify the order of things: 1st (first), 2nd (second), 3rd (third), 4th (fourth), etc.
Rectangular numbers are a subset of composite numbers. The squares of prime numbers will be composite but not rectangular.
If you assume the shape of a rectangular box, you need to choose three numbers which, when multiplied together, give the volume. Please note that this has infinitely many solutions. You can choose ANY positive numbers for the first and second dimension; only the third will be calculated (as volume, divided by the first and the second number).
Ordinal numbers represent placement. First, second, third and so on.
The third number is 112, the numbers are 86, 86, 112, 172
There is no such formula. Rectangular numbers are composite numbers and there is no known formula that will generate either composite numbers or prime numbers.
Cylinders are circles pulled out into the third dimension and rectangular prisms are rectangles pulled into the third dimension.
So far I know that 120 is a rectangular number
rectangular numbers are numbers just displayed in the shape of a rectangle e.g take the number 6 it can be shown as: ** ** or ****** **
First, Second, Third ... are called Ordinal Numbers.
Their order is switched. For example, in the two numbers 12345 and 13245, the second and third digits are transposed.
Well, honey, none of the numbers between 3 and 11 are rectangular. Rectangular numbers are the product of two consecutive integers, like 6 (2x3) or 12 (3x4). So, in this case, you're out of luck if you're looking for rectangular numbers between 3 and 11.
Cardinal numbers are one, two, three, four, ... Ordinal numbers are first, second, third, fourth, ...