Mathemagic! – 8 facts about maths. number 5 is a perfect number !

Hey there, this time I have compiled some amazing facts about Mathematics. One can call it MATHEMAGIC too. People who are not a math freak (like me) can also read it. It’s fun and I am sure you are gonna like it. So let’s start mathemagic !


  1. You might have guessed that most people’s favorite number is 7 but that’s now been proven

A recent online poll of 3,000 people by Alex Bellos found that around 10% of them chose seven, with 3 as the runner-up. That might be because 7 has so many favorable connections ( 7 wonders of the world, 7 pillars of wisdom, 7 seas, 7 dwarves, 7 days, 7 colors in the rainbow). But it’s also true that 7 (seven) is “arithmetically unique” – the only single number you can’t multiply or divide while keeping the answer within the 1-10 range.

I wonder why do I always choose7


The universe isn’t big enough for Googolplex

 A googolplex is 10 to the power of a googol (a googol means 1 followed by 100 zeroes), or 10 to the power of 10 to the power of 100. Our known universe doesn’t have enough space to actually write that out on paper. If you try to do that sum on a computer, you’ll never get the answer, because it won’t have enough memory. Time to start believing mathemagic.


The numeral 4 is associated in Japanese and Chinese cultures with ‘death’ (Many Chinese hospitals do not have a 4th floor). 


Surely, you remember the Pythagorean Theorem from your 10th grade geometry class, but have you ever heard of Pythagoras’ Constant? Well, here’s the lowdown: The square root of 2 (1.41) is known as Pythagoras’ Constant. It’s also the very first irrational number ever to be discovered.


In number theory, “a perfect number” is a positive integer that is equal to the sum of its positive divisors. By this rule, 6 is the smallest perfect number. If you scratched your head and said, “Huh?,” here’s an example to clarify:

1 + 2 + 3 = 6.

The next perfect number doesn’t occur until 28. It turns out perfection really is few and far between…
Often, the number 1 is confused as a prime number. But that’s not the case. ‘1’ does not fulfill the requirements to be prime (being divisible by both 1 and itself). Divide 1 by 1 and you get…1. Nothing has been divided.


Do you know who is Srinivasa Ramanujan ? if not then he was an Indian mathematician who lived during the British Rule in India. Though he had almost no formal training in pure mathematics, he made substantial contributions to mathematical analysisnumber theoryinfinite series, and continued fractions, including solutions to mathematical problems then considered unsolvable..

Ramanujan independently compiled nearly 3,900 results (mostly identities and equations). Many were completely novel; his original and highly unconventional results, such as the Ramanujan prime, the Ramanujan theta functionpartition formulae and mock theta functions.

They have opened entire new areas of work and inspired a vast amount of further research. Nearly all his claims have now been proven correct. Later a movie was made based on his life, called as “The man who knew infinity”, starring Dev patel (must watch)


Shakuntala Devi familiar with this name? if not then,

She was an Indian writer and mental calculator, popularly known as the “Human Computer”. Her talent earned her a place in the 1982 edition of The Guinness Book of world Records. Infact there is movie coming based on her starring Vidya Balan.

On 18 June 1980, she demonstrated the multiplication of two 13-digit numbers—7,686,369,774,870 × 2,465,099,745,779

These numbers were picked at random and the event was conducted by the Department of Computing at Imperial College London. She correctly  answered 18,947,668,177,995,426,462,773,730 in 28 seconds, which was the time taken by her to speak the answer.

Okay folks that’s all for today, I hope you guys liked it. Keep reading


This blog is compiled by URJA RAI ‘OORJA’

read mind boggling riddles here –

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