Saturday, April 25, 2009

Prime Number Upside down

Prime Number upside down
If you type the prime 3217001 on a calculator and hold it upside down, you can read the word "IDOLIZE", provided you accept that '0' can be both "D" and "O". Are there any larger primes that become a meaningful word when read upside down like this?


  1. Well there are around 1M words in the english dictionary.
    You could loop over the words and check
    Any other ingenious method ?

  2. Not sure about any ingenious method. But if i ll have to do it, i would better identify the digits that look like alphabets and try to find their permutation or combination first. The to eliminate further i would not look for words without vowels and with more than 2-3 vowels/consonants together.
    Any more thoughts??

  3. Here are few:
    3718103 = edibile
    5355307 = loesses
    5734051 = isohels
    53517001 = idolises
    55076051 = isogloss
    55373603 = edgeless
    77185181 = ibisbill
    378163771 = illegible
    537816173 = eligibles
    3216070301 = ideologize
    03216070301 = ideologized


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