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:
— 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:
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.