Primes whose first and last number is 3: Difference between revisions

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added a stretch goal to this (draft) task.
m (→‎{{header|REXX}}: added stretch goal solution.)
m (added a stretch goal to this (draft) task.)
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;Stretch goal:
Find and show only the   ''number''   of these types of primes   that are   '''<   1,000,000'''.
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