Perfect Square Number Calculator

Input a number to determine if it's a perfect square, or input a range to generate all perfect squares within it.

Perfect Square Check or Generate

What Is a Perfect Square?

A perfect square is a non-negative integer that can be expressed as the square of an integer. In other words, if there exists an integer \(n\) such that \(n^2 = x\), then \(x\) is a perfect square.

How to Determine if a Number Is a Perfect Square

  1. Verify that \(x\) is a non-negative integer.
  2. Calculate the square root of \(x\), \(n = \sqrt{x}\).
  3. Check if \(n\) is an integer (i.e., \(n^2 = x\)). If \(n\) is an integer, \(x\) is a perfect square; otherwise, it is not.

Examples

Example 1: Is 16 a Perfect Square?

Solution:

Compute \(n = \sqrt{16} = 4\).

\(4^2 = 16\).

Result: 16 is a perfect square.

Example 2: Is 20 a Perfect Square?

Solution:

Compute \(n = \sqrt{20} \approx 4.47\).

\(4.47\) is not an integer.

Result: 20 is not a perfect square.

Example 3: Is 289 a Perfect Square?

Solution:

Compute \(n = \sqrt{289} = 17\).

\(17^2 = 289\).

Result: 289 is a perfect square.

Example 4: Is 1728 a Perfect Square?

Solution:

Compute \(n = \sqrt{1728} \approx 41.57\).

\(41.57\) is not an integer.

Result: 1728 is not a perfect square.

First 100 Perfect Squares

  • 1
  • 4
  • 9
  • 16
  • 25
  • 36
  • 49
  • 64
  • 81
  • 100
  • 121
  • 144
  • 169
  • 196
  • 225
  • 256
  • 289
  • 324
  • 361
  • 400
  • 441
  • 484
  • 529
  • 576
  • 625
  • 676
  • 729
  • 784
  • 841
  • 900
  • 961
  • 1024
  • 1089
  • 1156
  • 1225
  • 1296
  • 1369
  • 1444
  • 1521
  • 1600
  • 1681
  • 1764
  • 1849
  • 1936
  • 2025
  • 2116
  • 2209
  • 2304
  • 2401
  • 2500
  • 2601
  • 2704
  • 2809
  • 2916
  • 3025
  • 3136
  • 3249
  • 3364
  • 3481
  • 3600
  • 3721
  • 3844
  • 3969
  • 4096
  • 4225
  • 4356
  • 4489
  • 4624
  • 4761
  • 4900
  • 5041
  • 5184
  • 5329
  • 5476
  • 5625
  • 5776
  • 5929
  • 6084
  • 6241
  • 6400
  • 6561
  • 6724
  • 6889
  • 7056
  • 7225
  • 7396
  • 7569
  • 7744
  • 7921
  • 8100
  • 8281
  • 8464
  • 8649
  • 8836
  • 9025
  • 9216
  • 9409
  • 9604
  • 9801
  • 10000