Find the sum of digits in 100!
Evaluate the sum of all amicable pairs under 10000.
What is the total of all the name scores in the file of first names?
Find the sum of all the positive integers which cannot be written as the sum of two abundant numbers.
What is the millionth lexicographic permutation of the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9?
What is the first term in the Fibonacci sequence to contain 1000 digits?
Find the value of d < 1000 for which 1/d contains the longest recurring cycle.
Find a quadratic formula that produces the maximum number of primes for consecutive values of n.
What is the sum of both diagonals in a 1001 by 1001 spiral?
How many distinct terms are in the sequence generated by a**b for 2 ≤ a ≤ 100 and 2 ≤ b ≤ 100?