https://www.codewars.com/kata/55e0a2af50adf50699000126/python
Pure odd digits primes | Codewars
Primes that have only odd digits are pure odd digits primes, obvious but necessary definition. Examples of pure odd digit primes are: 11, 13, 17, 19, 31... If...
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https://dev.to/miku86/javascript-katas-find-odd-digits-41jh
JavaScript Katas: Find Odd Digits - DEV Community
We learn how to use String, Number, split, join, filter, slice. Tagged with javascript, beginners, webdev, codenewbie.
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