In number theory, a congruum (plural congrua) is the difference between successive square numbers in an arithmetic progression of three squares. The congruum problem is the problem of finding squares in arithmetic progression and their associated congrua.
In number theory, a congruum (plural congrua) is the difference between successive square numbers in an arithmetic progression of three squares. The congruum problem is the problem of finding squares in arithmetic progression and their associated congrua.
Source: Wikipedia "Congruum" · CC BY-SA 4.0
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