Peter wrote a list of all the numbers that could be produced by changing one digit of the number 200. How
many of the numbers on Peter's list are prime?
Your answer

None.

If you change the first digit:
100, 300, 400, 500, 600, 700, 800, 900

If you change the second digit:
210, 220, 230, 240, 250, 260, 270, 280, 290

If you change the third digit:
201, 202, 203, 204, 205, 206, 207, 208, 209

None of these numbers are prime.