In Mathematics, the square root of 15 is a number that when multiplied by itself yields the original number 15. Because it cannot be stated in the form of p/q, the square root of 15 is an irrational number.. Here is the answer to questions like: Square root of 15 | √15 or what is the square root of 15? Use the square root calculator below to find the square root of any imaginary or real number. See also in this web page a Square Root Table from 1 to 100 as well as the Babylonian Method or Hero's Method.
Square root calculator and perfect square calculator. Find the square root, or the two roots, including the principal root, of positive and negative real numbers. Calculate the positive principal root and negative root of positive real numbers. Also tells you if the entered number is a perfect square.. Simplify square root of 15. Step 1. The result can be shown in multiple forms. Exact Form: Decimal Form: Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.. √ 15 15. Decimal Form: 3.87298334.