# Basic Math

## Divisibility Rule of 6

A number is said to be divisible by another number if the remainder of the division is a zero(0). Divisibility rules are often used to determine, if a number is …

## Divisibility Rule of 5

A number is said to be divisible by another number if the remainder comes out to be zero(0). Divisibility rules are often used to determine, if a number is divisible …

## Divisibility Rule of 7

Divisibility rules are shortcuts used to find if a number can be divided by a required divisor, without performing the actual division process. These rules usually consist of a set …

## Divisibility Rule of 9

A number is said to be divisible by another number if the remainder of the number is a zero(0). Divisibility rules are often used to determine, if a number is …

## Value of Pi

Pi, denoted by π, is a constant that we’ve been using since our fifth grade when we first learnt how to calculate an area enclosed by a circle. Do you …

## Sum of Squares of n Natural Numbers

The sum of squares of the first natural numbers refers to the following special sum, $$\sum_{i=1}^n i^2 = \sum n^2 = 1^2 + 2^2 + 3^2 + \ldots + n^2$$ …

## Factors of 8

Factors of 8 are basically the numbers that divide it evenly or exactly without leaving any remainder i.e if a number that leaves a remainder of zero, is called a …

## Factors of 45

Factors of 45 are basically the numbers that divide it evenly or exactly without leaving any remainder i.e if a number divides 45 with a remainder of zero, then that …

## Factors of 80

Factors of 80 are basically the numbers that divide it evenly or exactly without leaving any remainder i.e if a number divides 80 with a remainder of zero, then that …

## Factors of 50

Factors of 50 are basically the numbers that divide it evenly or exactly without leaving any remainder i.e if a number divides 50 with a remainder of zero, then that …

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