Prove or disprove: $$\text { If } f ( n ) = n ^ { 2 } - n + 17 \text {, then } f ( n ) \text { is prime for all positive integers } n \text {. }$$

Name: Prove or disprove: \[\text { If } f ( n ) = n ^ { 2 } - n + 17 \text {, then } f ( n ) \text { is prime for all positive integers } n \text {. }\]
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The Answer of Prove or disprove: $$\text { If } f ( n ) = n ^ { 2 } - n + 17 \text {, then } f ( n ) \text { is prime for all positive integers } n \text {. }$$

Prove or Disprove If f(n)=n2−n+17, then f(n) is prime for all positive integers n. \text { If } f ( n ) = n ^ { 2 } - n + 17 \text {, then } f ( n ) \text { is prime for all positive integers } n \text {. } If f(n)=n2−n+17, then f(n) is prime for all positive integers n.

Prove or Disprove $\text { If } f ( n ) = n ^ { 2 } - n + 17 \text {, then } f ( n ) \text { is prime for all positive integers } n \text {. }$