# My mobile number is a prime number

My personal mobile number 9565804301 is a prime number.

# What is a prime number?

Any integer *p* greater than 1 is called a prime number if and only if its positive factors are 1 and the number *p* itself.

In other words, the natural numbers which are completely divisible by 1 and themselves only and have no other factors, are called prime numbers. **2 , 3,5,7,11,13… ** etc. are prime numbers [or just Primes]. The numbers greater than 1, which are not prime are called Composite numbers.

Thanks, Ganesh for the tip. He tweeted:

@wpgaurav What are the prime factors of 82079521? I'm trying to find prime factors of my mobile number. #math

— Ganesh Dhamodkar (@ganeshdhamodkar) April 23, 2014

His eight digit number couldn’t pass the ‘prime test’ as it had **two prime factors** but my ten digit number did. Exceptional luck!

Check this fact on Wolfram Alpha:

Type `Is 9565804301 a prime?`

in the box and hit enter or just visit this link. You can also do the “prime test” for your own number.