Ishirini na nane : Tofauti kati ya masahihisho

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Mstari 4:
 
Vigawo vyake vya [[namba tasa]] ni: 2 x 2 x 7.
==Matumizi==
* Namba hurejea miaka [[28 KK]] na [[28]] [[BK]].
 
==Tanbihi==