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NUMBER SYSTEM

43 posts

Longest Divisible Sequence Ending at N

Last Updated: 14 September 2026

Given an integer n, find the max length of a sequence with the following properties.Strictly increasing and every term divides every subsequent term.Last term is n.The seq...read more

Interesting Facts about Decimals

Last Updated: 16 February 2026

A decimal is a way of writing numbers that uses a dot (.), called a decimal point, to separate the whole number from the fraction. The decimal system is the standard way t...read more

School Learning

Interesting Facts

Interesting Facts about Euler's number 'e'

Last Updated: 23 July 2025

Euler's number, written as "e," is a mathematical constant approximately equal to 2.71828. It is named after the Swiss mathematician Leonhard Euler, who significantly cont...read more

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School Learning

Interesting Facts

Interesting Facts about LCM

Last Updated: 23 July 2025

LCM (Least Common Multiple) of two or more numbers is the smallest number that is divisible by each of the given numbers (resulting in a remainder of 0 when we divide the ...read more

School Learning

Interesting Facts

Tetrahedral Number

Last Updated: 23 July 2025

Tetrahedral numbers are a type of figurate number, that represent the number of objects that can be arranged to form a pyramid with a triangular base called a tetrahedron....read more

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School Learning

Figurate Numbers

Last Updated: 23 July 2025

Figurate numbers are a number that can be represented by a regular geometric shape composed of equally spaced elements. These elements can include squares, triangles, poin...read more

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School Learning

Square Number Sequence

Last Updated: 23 July 2025

A square number is defined as a product of an integer multiplied by itself. It can also be defined as any number raised to the power 2.For example: 169 (13 × 13), 169 is a...read more

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School Learning

Hexagonal Numbers : Means, Formula, Properties and Test

Last Updated: 23 July 2025

Hexagonal numbers are a unique class of figurate numbers (Figurate numbers are numbers that can be represented by dots arranged in geometric shapes like triangle, square, ...read more

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School Learning

Interesting Facts about Composite Numbers

Last Updated: 23 July 2025

Composite numbers are positive integers that have at least one positive divisor other than one and themselves. This means that composite numbers can be divided evenly by a...read more

School Learning

Last Updated: 08 September 2026

Prime Spiral, commonly known as the Ulam Spiral, is a graphical representation of prime numbers arranged in a spiral format. The spiral consists of positive integers arran...read more

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School Learning

Different Methods to Check if a Number is Prime

Last Updated: 23 July 2025

Prime numbers are the natural numbers greater than 1, that have no positive divisors other than 1 and itself. In other words, a prime number can only be divided evenly (wi...read more

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School Learning

Interesting Facts about Natural Number

Last Updated: 16 February 2026

Natural numbers are a part of real numbers. A set of natural numbers is usually denoted by the symbol N. Some useful facts about natural numbers are as given below:Natural...read more

School Learning

Is Zero a Number

Last Updated: 21 August 2025

Yes, Zero is indeed a number with several unique properties and a rich history that underlines its importance in mathematics.In this article, we will discuss zero in detai...read more

Is 41 a Prime or Composite Number?

Last Updated: 23 July 2025

41 is a prime number because it has only two factors: 1 and 41. This means it cannot be divided evenly by any number other than 1 and itself, confirming its prime status.L...read more

School Learning

How to Multiply Decimals by Powers of 10

Last Updated: 23 July 2025

To multiply decimals by powers of 10, move the decimal point to the right by the number of zeros in the power of 10. For example, multiplying by 100 (102) shifts the decim...read more

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