Let me rephrase: Algorithms that work with prime numbers are primary used in cryptography. And since less than 1% of developers work on cryptography, the chance of encountering such an algorithm during everyday work is highly unlikely.
But you could encounter them in an job interview.
That was a critique of the interviewing procedure which asks totally irrelevant questions and not you.
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@Cat Carbonell that's not what I meant.
Let me rephrase: Algorithms that work with prime numbers are primary used in cryptography. And since less than 1% of developers work on cryptography, the chance of encountering such an algorithm during everyday work is highly unlikely.
But you could encounter them in an job interview.
That was a critique of the interviewing procedure which asks totally irrelevant questions and not you.