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## 'As Easy as 1,2,3' printed from http://nrich.maths.org/

My calculator has 26 memories - one per letter of the alphabet.
When I type a sequence of letters the calculator gives the product
of all the numbers in the corresponding memories. I want to put
numbers in the various stores so that when I type the word ONE it
returns 1, and when I type the word TWO it returns 2, and when I
type the word THREE it returns 3 and so on. How far can you get ?
Is there an integer above which it is impossible to get ?