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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

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Find the unique solution of the following cryptarithmic addition (proposed by Sidney Kravitz): OTTAWA + CALGARY = TORONTO. Hint: The sum of digits of all 3 numbers is the smallest 3-digit number.


  Submitted: 2018-04-21 10:31:58;   Last Modified: 2018-04-21 13:15:40.

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