# 197

$t_title is "197"

$t_subtitle is "(just those submitted by Gallardo)"

$t_adjust_path is "/~caldwell/curios/"

$t_class is "prime"

$nunber_id is "645"

$t_meta['description'] is "One of many pages of prime number
curiosities and trivia. This page discusses 197
Come explore a new prime today!"

Just showing those entries submitted by 'Gallardo': (Click here to show all)

197 is the sum of digits of all two-digit primes. [Gallardo]

The smallest multidigit prime p that makes 10^p-9 prime. Note that the next prime (199) has the same property. They are twin primes! [Gallardo]

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