Question

Which of the following are prime numbers? 37, 23, 17, 51, 69

Answer 1

Do a prime factorization for each of the numbers to determine if they prime or not

`\begin{gathered} 37\rightarrow37 \\ 23\rightarrow23 \\ 17\rightarrow17 \\ 51\rightarrow3*17 \\ 69\rightarrow3*23 \end{gathered}`

Therefore, the following prime numbers are 37, 23, and 17.