# Quick Answer: What Is The Square Of 15?

## What are the first 10 square numbers?

The first 10 perfect square numbers are 1, 4, 9, 16, 25, 36, 49, 64, 81, and 100..

## Is 42 a square root?

Since 42 is not a perfect square, it is an irrational number. This means that the answer to “the square root of 42?” will have an infinite number of decimals. The decimals will not terminate and you cannot make it into an exact fraction.

## How do I calculate square root?

Examples.Finding square roots of of numbers that aren’t perfect squares without a calculator.Example: Calculate the square root of 10 ( ) to 2 decimal places.Find the two perfect square numbers it lies between.Divide 10 by 3. … Average 3.33 and 3. ( … Repeat step 2: 10/3.1667 = 3.1579.More items…

## Is 15 a perfect square?

1 Answer. A perfect square is a number that is the result you get from squaring a number. 15 is not a perfect square.

## Is 16 a SURD?

To simplify a surd, write the number under the root sign as the product of two factors, one of which is the largest perfect square. Note that the factor 16 is the largest perfect square. Recall that the numbers 1, 4, 9, 16, 25, 36, 49, … are perfect squares.

## Why is 20 not a square number?

A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 20 is about 4.472. Thus, the square root of 20 is not an integer, and therefore 20 is not a square number.

## What is the square of 10?

100numbersquaresqrt8642.8289813.000101003.162111213.31746 more rows

## What is the square root of 15 simplified?

15=3×5 has no square factors, so √15 cannot be simplified. It is not expressible as a rational number. It is an irrational number a little less than 4 .

## What is the 3 square number?

Square NumberSloanenumbers1A0002901, 4, 9, 16, 25, 36, 49, 64, 81, …2A0004152, 5, 8, 10, 13, 17, 18, 20, 26, 29, …3A0004193, 6, 11, 12, 14, 19, 21, 22, 24, 27, …4A0042157, 15, 23, 28, 31, 39, 47, 55, 60, 63, …

## What is the square of 11?

121Table of Squares and Square RootsNUMBERSQUARESQUARE ROOT8642.8289813.000101003.162111213.31796 more rows

## Is the square root of 15 a real number?

Answer and Explanation: The square root of 15 is not a rational number.

## What is the square number of 15?

225Square Numbers 1-20AB13 squared16914 squared19615 squared22516 squared25616 more rows

## What is the 5 square number?

1, 4, 9, 16 and 25 are the first five square numbers.

## Is 27 a cube number?

A cube number is the answer when an integer is multiplied by itself, then multiplied by itself again. … The third cube number is 27 because 3 × 3 × 3 = 27 , and so on. The first five cube numbers are: 1, 8, 27, 64 and 125.