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654 la puterea 7+543 la puterea 21

Răspuns :

654=2x3x109

543=3x181

2x3x109)⁷=2⁷3⁷109⁷

3x181)²¹=3²¹181²¹

=3⁷(2⁷109⁷+3¹⁴181²¹)