# How to calculate 2^n in integer where n is in between 10 to 10000 in php? Code Answer

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I am working with some logical problems in my localhost. At a case I need to calculate power of 2 and sum them in integer type to proceed next case. I am using 32 bit system, so I can calculate up to 2^31, as well as sum up to 2147483648 in integer type.

How can I increase the number of power up to 10000? Is there any math library or class available to calculate big integer effectively?

Probably I dont need the power over thousand but I am curious if it is possible in PHP or not. Can anyone answer my with proper reference ?

There are two libraries available in PHP to work with BIG Numbers.

They are,

In both of them GMP has more library function then BC Math.

GMP – It considers leading zeros in a number string as meaning the
number is in octal, whereas ‘BC’ doesn’t. Reference:
http://www.php.net/manual/en/book.gmp.php

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