thanks that makes more sense

The following methods were disabled:

Array#count

Array#length

It's disabled and you've been warned in the description.

Read the comments below - there are 7 years (!) of comments of people saying the exact same thing as you, with the exact same test case, and dozens of helpful replies explaining that 1074 is in fact the correct answer.

See this comment for example:

The answer is 1074

The kata has been completed now 12,500 times - it's the correct answer.

If you counted manually, well then I'm afraid you need to improve your coding and your manual counting skills.

You are wrong.

What's confusing in the description? Yours got rid of minimum and looks like any number that makes the sum a prime could be the answer.

This is incorrect. And the description is clear about why it is.