Question 1156236
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10 digits from 0 to 9   PLUS   26 letters of English alphabet  PLUS  "space" character give  10+26+1 = 37 different characters,

in all, to choose from.



With no repeating allowed, you have 37*36*35*34*33*32*31  different permutations/arrangements of seven characters.    <U>ANSWER</U>
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