1- We all know that 14159 are the first five decimal digits of PI, but how many times does this sequence appear in the first 10 million digits of PI?
2- Also in the first 10 million digits of pi,
how many times does X appear, where X is the first 5-digit prime that use five different numbers?
3- And at what position of PI will you find the first 4-digit prime?
4- And at what position of PI will you find the first 5-digit prime?
And an easy one to sweeten things up!
5- What two 2-digit primes when converted to binary "resemble" a decimal prime?