For any sort of question involving a calculation or a number, Wolfram|Alpha is a great place to go to. For conversions, math, dates, salaries, positions, astronomy, the site has a huge amount of compiled, currated data, and thousands of ways to interact with that data.
It's built on Mathematica, so it's easily the world's most powerful calculator.
No for 2 reasons:1. Wolfram Alpha is a product, not a business2. Wolfram Research, the company that produces Wolfram Alpha, is privately held.
The company that owns and operates Wolfram Alpha is Wolfram Research which is named for Stephen Wolfram, the founder and CEO of Wolfram Research. As for the Alpha, I do not know. Perhaps it is because it is the first letter of the greek alphabet, and they are "Number 1"?
wolframalpha.com
Wolfram|Alpha (wolframalpha.com) is good for most basic (and more advanced) mathematical needs
(From Wolfram alpha)
Wolfram Alpha not only have an FAQ, but they also have Facebook and Twitter pages for people to follow. They also blog about any recent developments in their service.
Use Wolfram|Alpha... go to the related link below, Wolfram|Alpha, and type in (is __ (number) prime) and then the program will compute that and tell you if it is prime or composite.
Wolfram Alpha estimates 14255.
83.78 years according to wolfram alpha.
A chart is at the Wolfram|Alpha link.
For any sort of calculation, Wolfram|Alpha is very helpful. If you have a calculation-based question, or if you need facts about food, careers, stars, or any sort of numerical data, Wolfram|Alpha is likely your best first stop. Also, if you have a math or physics problem, it's a great place to try to find a solution.
Tuesday. I found this out using Wolfram Alpha - check it out at wolframalpha.com