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**Pi**is not a

**natural number**.Whole

**numbers**: 0,1,2,3, ….

**Pi**is not awhole

**number**. Rational

**number**: The

**numbers**which canbe expressed in the form P/Q where P & Q are integers& Qin not zero.

Similarly, you may ask, is 3.14 a natural number?

The **number** pi, denoted π, is awell-knownirrational **number** that is generally known to havevalue**3.14**. However, **3.14** is actually the**number**π rounded to two decimal places, and is not thetrue value ofπ. Therefore, there is often some confusion as towhether**3.14** is a rational or anirrational**number**.

**natural number**if itisnon-negative and the only digits after its decimal points arezero,a

**fraction**is a natrual

**number**when it has theformwith being a

**natural number**and . The

**naturalnumbers**are, the integers are , the rational

**numbers**arebut carefulfor every and.

Also know, is Pi a real number?

**Pi** is an irrational **number**, whichmeansthat it is a **real number** that cannot be expressed byasimple fraction. That's because **pi** is whatmathematicianscall an "infinite decimal" — after the decimalpoint, thedigits go on forever and ever.

A Brief History of **Pi** (π) The ancient Babylonians **calculated** the area ofacircle by taking 3 times the square of its radius, which gavea**value of pi** = 3. One Babylonian tablet (ca.1900–1680BC) indicates a **value** of 3.125 for π,which is a closerapproximation.