What is the sign preceeding a number?

Answer by  monkeyz (3150)

If you mean this symbol: √, then it is a sign indicating the square root of a number. So for example, if you see that symbol and then the number 26, it means "the square root of 26."

Answer by  NoblesseOblige (444)

From your explanation of the symbol, it is most likely the sign for 'square root,' a mathematical term used in all sorts of things. A square root is a number that can be squared, 'prime numbers.' These numbers can only be multiplied by 1 to get that number.