Attempt this question without any electronic assistance.
Given that the square root of 10 is about 3.16,
how many 5- or 6-digit number are there with exactly 5 factors (including 1 and itself)?
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Attempt this question without any electronic assistance.
Given that the square root of 10 is about 3.16,
how many 5- or 6-digit number are there with exactly 5 factors (including 1 and itself)?