This number is a prime.

+ The largest possible prime value resulting from the ninedigital fraction equation (A/B)C + (D/E)F + (G/H)I, where the letters A to I represent any combination of the nine digits 1 through 9. Note that (6/3)4 + (8/2)5 + (9/1)7 is the only distinct solution for 4784009. [De Geest]

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