Eric Nicholas K's answer to Xiang Ning's Junior College 2 H2 Maths Singapore question.
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Sorry, I got so deep into thought and mistook the question “there exists at least one prime number in the 3 digits” as “the number of 3-digit prime numbers and this led me into thinking that all 3-digit numbers ending in 5 are not prime, so I ruled out 5. Forgot that the question asked for the digits and not the entire number.
Date Posted:
4 years ago
Its okay. Thank you