Composite magic squares are only possible if the order of the magic square has two divisors, for which magic squares exist. This implies n=9 as minimal order. Since the maximum order of a magic square has been set arbitrarily to n=20 on these pages, only magic squares of orders 9, 12, 15, 16,18 and 20 are possible.

Method | |
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Standard procedures | |

KUsing Kronecker-Operations |

All algorithms are described in detail in my PDF book. (chapter: *Composite Magic Squares*)