How can we help?

You can also find more resources in our Help Center.

1²

1

2²

4

3²

9

4²

16

5²

25

6²

36

7²

49

8²

64

9²

81

10²

100

11²

121

12²

144

13²

169

14²

196

15²

225

16²

256

20²

400

25²

625

square root of 121

11

square root of 144

12

square root of 169

13

square root of 196

14

square root of 225

15

square root of 256

16

square root of 400

20

square root of 625

25

numerator

the top number in a fraction

denominator

the bottom number in a fraction

integer

numbers along the number line, like -2, -1, 0, 1, 2. Includes whole number and their opposites. Does not include fractions or decimals.

even integer

integers that end in 0, 2, 4, 6, or 8

odd integer

integers that are not divisible by 2. they are numbers that do not end in 0, 2, 4, 6 or 8

positive number

a number that is greater than zero, like 1.5, 10, and 1/2

negative number

a number that is less than zero, like -5, -1/2, -3.25

prime number

integers that have only two factors, the number 1 and itself. the number 1 is not a __ number because it only has one factor. the number 2 is the only even __ number.

real number

all the numbers you can think of. includes integers, fractions, and decimals

whole number

counting numbers (numbers you can count on your fingers), like 1, 2, 3, and zero. Does not include negative numbers.