Truncatable primes
A Python library that generates that generates sequences of truncatable prime numbers and derivatives of the sequences in the form of a package that can be installed and imported.
A truncatable prime is still prime when number is truncated. For example, 317 is a left truncatable prime because 17 and 7 are prime. It is also a right truncatable prime because 31 and 3 are prime.
The intention of this library is to provide code that is reasonably efficient and readable. It is not difficult to track down cryptic one-liner code that produces identical results.
Getting Started
Python 3 is assumed.
Installing
Using the source code from github
git clone https://github.com/harry-zuzan/trprimes.git
cd trprimes
python setup.py install
Using pip
pip install trprimes
Examples
from trprimes import trunc
# the number of left truncatable primes
trunc.count_ltrunc()
# the largest of left truncatable prime
trunc.largest_ltrunc()
# iterate through left truncatable primes in ascending order
ltp = trunc.ordered_ltrunc()
next(ltp)
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