show that only prime of the form n^3 -1 is 7
Answers
Answered by
2
Step-by-step explanation:
exam
2^3-1
=7
seven is prime
Answered by
2
Answer:
hiii
Step-by-step explanation:
L.H.S,
n^ 3 - 1
= 2 ^ 3 - 1
= 8 - 1
= 7
L.H.S. = R.H.S.
PROVED
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