RULES OF DIVISIBILITY
PDF Version: Divisibility Rules
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A number is divisible by…                    if…                                                                              Example
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             2                                        the last digit is even (0, 2, 4, 6, 8)                                  12,458
             3                                        the sum of its digits is divisible by 3                             142,011
                                                         1 + 4 + 2 + 1 + 1 = 9 and 9/3 = 3
             4                                        the last 2 digits are divisible by 4                                  615,420
                                                         20/4 = 5, so the whole number is divisible by 4
             5                                        the last digit is 0 or 5                                                          134,890
                                                                                                                                                             467,675
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6Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â the number is divisible by 2 and by 3Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 334,002
                                                         the last digit is even
                                                         3 + 3 + 4 + 2 = 12 and 12/3 = 4
             8                                        the last 3 digits are divisible by 8                                  213,104
                                                         104/8 = 16
             9                                        the sum of the digits is divisible by 9                          720,108
                                                         7 + 2 + 1 + 8 = 18 and 18/9 = 2
             10                                     the last digit is 0                                                                   324,550