perplexus.info :: Sequences : Elementary Math

Elementary Math (Posted on 2013-05-24)

What's the next number in:

4, 21, 143, 1061, 8363, 68906, 586081, ...

Submitted by Charlie

Rating: 5.0000 (1 votes)

Solution: (Hide)

5096876
This is the sequence of the number of prime numbers with n digits.

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