# Graham’s Number: This Enormous Number Can Create A Black Hole In Your Brain If You Try To Memorise It

A black hole as we know is one of the dangerous things in the universe and now the latest reports show that such phenomena can happen in our brains as well. Scientists believe that a number which is known as Graham’s Number is so long that if you try to remember then your brain may collapse and the same can lead to a formation of a black hole in the brain. As per studies, if the density of an object crosses a certain level, it collapses under its own gravity as it happens with stars that form a black hole. The same can happen to our brain if we try to cram all the digits of Graham’s number in our brain.

Mathematician Ronald Graham was the first one to propose this long number. In 1971, the number was discovered and was used as an upper bound for a problem used as maths poof for a problem involving multi-dimensional hypercubes. Apparently, the number was first published in 1980 Guinness Book of World Records. There are 64 steps to obtain Graham’s Number and each step involves a math procedure called Knuth’s up-arrow notation. After first few steps, there are around 7.6 trillion threes in the sequence. “If you even try to imagine Graham’s number, your head would break down into a black hole because your head cannot store the information required to envisage it,” website Physics Astronomy explains.

The Graham’s number is so long that there is not enough space in the universe to write down all the digits. John Baez, a mathematical physicist at the University of California, told Live Science that this is even “a ridiculous underestimate of how big Graham’s number is”. Not only Graham’s number but smaller numbers like Googol can have similar effect on brain even if the number is stored in decimal notation. A Googol can be written in following manner:10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 and Graham’s number has more trillion digits. What are your views on the same? Let us know in the comments below.