Question

4(power91)+4(power92)+4(power93)+4(power94) is divisible by

Answer 1

Answer:

81

${4}^{91 } + {4}^{92} + {4}^{93} + {4}^{94} \\ \\ {4}^{91} (1 + 4 + 16 + 64) \\ \\ {4}^{91 } \times 85$

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