If P k is the statement 23 k -1 is divisible by 7 - then P k -1 isA- 23 k -2 is divisible by 7B- 23 k-3-1 is divisible by 7C- 23 k-1-1 is divisible by 7D- 23 k -2-1 is divisible by 7

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Factors of natural numbers

If P k is the...

Question

If P(k) is the statement 2^3k - 1 is divisible by 7, then P(k + 1) is

2^{3k - 2} is divisible by 7

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2^{3k +3} - 1 is divisible by 7

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2^3k+1 - 1 is divisible by 7

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2^3k+2 - 1 is divisible by 7

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