GeekDad Puzzle of the Week Solution – Squared Roots
Prime numbers (2, 3, 7, etc.) are simple, in that they make up themselves — they have no non-trivial factors, and can only be divided by the natural numbers 1 and themselves. Compound numbers, on the other hand, may have entirely different roots.
Pi Day and the Speed of Light: What Do Pi and C Have in Common?
Mankind had known the ratio of the circumference of a circle to its diameter for 4000 years, but we didn’t celebrate a formal Pi Day until ... square is four and the perimeter of the inscribed square is two times the square root of 2, or about 2.83.
Try this with a slice of pi
What was true for Euclid more than two millenniums ago is still true today ... Mazur explores the history of imaginary numbers, that is, numbers that are some multiple of the square root of minus 1. He evocatively recreates the bewilderment of the ...
Pi week: going full circle - Part I
Pi falls in a category that another famous historical number falls into, the square root of 2. This latter number arises very naturally also: Take any square which has sides equal to one unit (foot, inch, centimeter, etc). Any line going from one corner to ...
What is a Prime Number?
A Mersenne prime is a prime number that can be ... multiples of numbers until the square root of the largest number in the grid is crossed out. For example, with a grid of 1 to 100, you would cross out the multiples of 2, 3, 4, 5, 6, 7, 8, 9, and 10 ...