rectangular numbers are numbers just displayed in the shape of a rectangle
e.g take the number 6 it can be shown as:
**
** or ******
**
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.
Rectangular numbers are of the form n(n+1) for n = 1, 2, 3, 4, 5, 6, ... The first few rectangular numbers are: 2, 6, 12, 20, 30, 42, ...
57
The question is ambiguous since a rectangular pyramid and a rectangular prism will have different numbers of flat surfaces. There is no indication in the question which shape is intended.
It is a matrix or a determinant.
Rectangular numbers are a subset of composite numbers. The squares of prime numbers will be composite but not rectangular.
The second and third rectangular numbers are 6 and 12
Rectangular numbers, also known as oblong numbers, are the products of two consecutive integers. Between 3 and 10, the rectangular numbers are 6 (2×3), 12 (3×4), and 20 (4×5). Thus, the rectangular numbers in that range are 6 and 12.
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.
So far I know that 120 is a rectangular number
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.
In mathematics, a non-rectangular number is often referred to as a "non-rectangular integer" or simply a "non-rectangular shape." However, the term "rectangular number" typically refers to numbers that can be arranged in a rectangular array of dots, such as the product of two integers. Non-rectangular numbers would be those that do not fit this definition, like prime numbers or certain other integers.
Rectangular numbers are of the form n(n+1) for n = 1, 2, 3, 4, 5, 6, ... The first few rectangular numbers are: 2, 6, 12, 20, 30, 42, ...
42
A row of numbers, a column of numbers or a rectangular layout of numbers.
Rectangular numbers, also known as oblong numbers or pronic numbers, are the product of two consecutive integers. The rectangular numbers between 2 and 40 are 6 (2×3), 12 (3×4), 20 (4×5), 30 (5×6), and 42 (6×7). However, since 42 exceeds 40, the rectangular numbers between 2 and 40 are 6, 12, 20, and 30.
101