Prime Subset Sums
Determining the value of infinite polynomial series for which the coefficients are Fibonacci numbers.
Calculating the digital sum of the decimal digits of irrational square roots.
Investigate the Diophantine equation x2 − Dy2 = 1.
Investigating which primes will never divide a repunit containing 10**n digits.
Which base/exponent pair in the file has the greatest numerical value?
Investigate the game of chance involving coloured discs.
Find the sum of digits in 100!
What is the sum of the digits of the number 2^1000?