30 jan 2014, 15:23
O maior fator primo do número N= 5^10 - 5^9 - 500 é:
30 jan 2014, 16:06
\(N = 5^(9)*(5-1)-2^(2)*5^3\)
\(N = 2^2*5^9-2-2^2*5^3\)
\(N = 2^2*5^3(5^6-1)\)
\(N = 2^2*5^3*15624\)
15624 = 2^3*3^2*7*31
resposta : 31
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