Investigating the number of ways in which coins can be separated into piles.
Investigate the expansion of the continued fraction for the square root of two.
Considering natural numbers of the form, ab, finding the maximum digital sum.
What is the first term in the Fibonacci sequence to contain 1000 digits?
Concealed Square
Hexadecimal numbers
How many distinct terms are in the sequence generated by a**b for 2 ≤ a ≤ 100 and 2 ≤ b ≤ 100?
Find the last ten digits of the non-Mersenne prime: 28433 × 27830457 + 1.
Find the last ten digits of 11 + 22 + … + 10001000.