Monday, April 22, 2013

27

27 is the smallest 2-digit number in which the sum of digits is equal to the sum of prime factors:

27 = 3 x 3 x 3 and 2 + 7 = 3 + 3 + 3
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1 comment:

  1. moishApril 22, 2013 at 8:14 PM

    And 27 pastrami sandwiches is the only two-digit number of pastrami sandwiches in which the sum of the digits of the pastrami is equal to the prime pastrami factor sums of the sandwich.

    I need more sleep.

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