The number forty two as the answer to a most ambitious question.
“In The Hitchhiker’s Guide to the Galaxy by Douglas Adams (42 is) ‘The Answer to the Ultimate Question of Life, the Universe, and Everything’, calculated by an enormous supercomputer over a period of 7.5 million years. Unfortunately no one knows what the question is. Thus, to calculate the Ultimate Question, a special computer the size of a small planet was built from organic components and named ‘Earth’.”
― Wikipedia Article: 42 (number)