perplexus.info :: Numbers : Very Large Prime

Very Large Prime (Posted on 2022-07-08)

What is the largest prime lower than a googol?

Submitted by Charlie

Rating: 5.0000 (1 votes)

Solution: (Hide)

10^100-797
which is
97 9's and then 203.
from

n=sym(10)^100; while isprime(n)==false; n=n-1; end disp(n) disp(sym(10)^100-n)

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
maybe	xdog	2022-07-08 16:54:34
Puzzle Thoughts	K Sengupta	2022-07-08 16:11:49

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