# What is number -1 Squared?

-1 squared equals 1, because (-1) × (-1) = 1.

Once 1 = (-1) × (-1), 1 is also known as a, so called, perfect square.

Use the square calculator below to the square o any real number. See also, the definition and examples of squared numbers.

## What is a square and how to calculate its volume?

A square is a two dimensional figure which has its two edges of equal length. The area of a square is given by the product of its two dimensions. For example, if a square has its edge length equal to ‘a’ centimeters the area of the square is given by the product "a × a" which is equal to a^{2}. The square shown has its edges equal to 4 units. So, its area is:

a^{2} = a × a × a = a^{2} = 4 × 4 × 4 = 64 units or cubic centimeters (64 cm^{2}) (if we choose our area unit as square centimeters).

A perfect square is a number that can be expressed as the product of two equal integers.

A perfect square, also called a square number, is a number written by using the formula S_{n} = n^{2}, where n is an integer.

Image credits: mathsisfun.com

### Notice that:

- 0 squared is 0 (just make n = 0 in the formula S
_{n}= n^{2}) - 1 squared is 1 (just make n = 1)
- Negative 0 squared is 0 (just make n = 0)
- Negative 1 squared is 1 (just make n = 1)

## Squared Numbers or Perfect Square Table from 0 to 100^{2}

Squared Numbers Table 0 to 50^{2} |
---|

0 or -0 squared equals 0 |

1 or -1 squared equals 1 |

2 or -2 squared equals 8 |

3 or -3 squared equals 27 |

4 or -4 squared equals 64 |

5 or -5 squared equals 125 |

6 or -6 squared equals 216 |

7 or -7 squared equals 343 |

8 or -8 squared equals 512 |

9 or -9 squared equals 729 |

10 or -10 squared equals 1000 |

11 or -11 squared equals 1331 |

12 or -12 squared equals 1728 |

13 or -13 squared equals 2197 |

14 or -14 squared equals 2744 |

15 or -15 squared equals 3375 |

16 or -16 squared equals 4096 |

17 or -17 squared equals 4913 |

18 or -18 squared equals 5832 |

19 or -19 squared equals 6859 |

20 or -20 squared equals 8000 |

21 or -21 squared equals 9261 |

22 or -22 squared equals 10648 |

23 or -23 squared equals 12167 |

24 or -24 squared equals 13824 |

25 or -25 squared equals 15625 |

26 or -26 squared equals 17576 |

27 or -27 squared equals 19683 |

28 or -28 squared equals 21952 |

29 or -29 squared equals 24389 |

30 or -30 squared equals 27000 |

31 or -31 squared equals 29791 |

32 or -32 squared equals 32768 |

33 or -33 squared equals 35937 |

34 or -34 squared equals 39304 |

35 or -35 squared equals 42875 |

36 or -36 squared equals 46656 |

37 or -37 squared equals 50653 |

38 or -38 squared equals 54872 |

39 or -39 squared equals 59319 |

40 or -40 squared equals 64000 |

41 or -41 squared equals 68921 |

42 or -42 squared equals 74088 |

43 or -43 squared equals 79507 |

44 or -44 squared equals 85184 |

45 or -45 squared equals 91125 |

46 or -46 squared equals 97336 |

47 or -47 squared equals 103823 |

48 or -48 squared equals 110592 |

49 or -49 squared equals 117649 |

50 or -50 squared equals 125000 |

Squared Numbers Table 51^{2} to 100^{2} |
---|

51 or -51 squared equals 132651 |

52 or -52 squared equals 140608 |

53 or -53 squared equals 148877 |

54 or -54 squared equals 157464 |

55 or -55 squared equals 166375 |

56 or -56 squared equals 175616 |

57 or -57 squared equals 185193 |

58 or -58 squared equals 195112 |

59 or -59 squared equals 205379 |

60 or -60 squared equals 216000 |

61 or -61 squared equals 226981 |

62 or -62 squared equals 238328 |

63 or -63 squared equals 250047 |

64 or -64 squared equals 262144 |

65 or -65 squared equals 274625 |

66 or -66 squared equals 287496 |

67 or -67 squared equals 300763 |

68 or -68 squared equals 314432 |

69 or -69 squared equals 328509 |

70 or -70 squared equals 343000 |

71 or -71 squared equals 357911 |

72 or -72 squared equals 373248 |

73 or -73 squared equals 389017 |

74 or -74 squared equals 405224 |

75 or -75 squared equals 421875 |

76 or -76 squared equals 438976 |

77 or -77 squared equals 456533 |

78 or -78 squared equals 474552 |

79 or -79 squared equals 493039 |

80 or -80 squared equals 512000 |

81 or -81 squared equals 531441 |

82 or -82 squared equals 551368 |

83 or -83 squared equals 571787 |

84 or -84 squared equals 592704 |

85 or -85 squared equals 614125 |

86 or -86 squared equals 636056 |

87 or -87 squared equals 658503 |

88 or -88 squared equals 681472 |

89 or -89 squared equals 704969 |

90 or -90 squared equals 729000 |

91 or -91 squared equals 753571 |

92 or -92 squared equals 778688 |

93 or -93 squared equals 804357 |

94 or -94 squared equals 830584 |

95 or -95 squared equals 857375 |

96 or -96 squared equals 884736 |

97 or -97 squared equals 912673 |

98 or -98 squared equals 941192 |

99 or -99 squared equals 970299 |

100 or -100 squared equals 1000000 |

101 or -101 squared equals 1030301 |