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No, 23 is not a triangular number.

Here are a few examples of triangular numbers:

21, 28, 55, 45, 78 and 91.

Q: Is 23 a triangle number

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28 is a triangle number. The 28th triangle number is 406.

13 is not a triangle number. The 13th triangle number is 91.

The third triangle number is 6.

The fifth triangle number, known as T5 is 15.

A triangular number or triangle number counts the objects that can form an equilateral triangle. 10 objects can be formed into an equilateral triangle.

Related questions

No it is not. To be a right triangle the largest number squared has to equal the sum of the squares of the other two sides (Pythagorean theorem).

It is a scalene triangle

23

28 is a triangle number. The 28th triangle number is 406.

13 is not a triangle number. The 13th triangle number is 91.

The third triangle number is 6.

The fifth triangle number, known as T5 is 15.

Mayor of the Town - 1954 The Old Triangle 1-23 was released on: USA: 1954

No. Triangle numbers are a fixed set of numbers that can't be altered to make one certain number turn into a triangle number.

An isoceles triangle! It has two lengths the same!

23

A triangular number or triangle number counts the objects that can form an equilateral triangle. 10 objects can be formed into an equilateral triangle.