Curious Number Patterns #2

Interesting Patterns

777² = 603729

(603 + 729)/2 = 666

Doing a similar procedure for 666,

666² = 443556

except that we don’t divide the sum of the two 3-digit groups by 2.

443 + 556 = 999

Same procedure for 999:

999² = 998001

998 + 001 = 999

The following is a similar pattern with larger numbers and it’s more elegant:




About Edmark M. Law

My name Edmark M. Law. I work as a freelance writer, mainly writing about science and mathematics. I am an ardent hobbyist. I like to read, solve puzzles, play chess, make origami and play basketball. In addition, I dabble in magic, particularly card magic and other sleight-of-hand type magic. I live in Hong Kong. I blog at You can find me on Twitter @EdmarkLaw and Facebook. My email is
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18 Responses to Curious Number Patterns #2

  1. OwnShadow says:

    I once spotted that 12=3×4, 56=7×8.

    Liked by 1 person

  2. Megala says:


    Liked by 1 person

  3. lifecameos says:

    if you say so.. Maths lost me at age 14.

    Liked by 1 person

  4. lorac888890 says:

    Hello. Thank you for enjoying my butterfly poem. Your number system is interesting. Please come back more often. Take care.


  5. Aaratrika says:

    That is so cool!

    Liked by 1 person

  6. You truly know how to give our brains a workout, Edmark! 😀

    Have a nice weekend…without Math! 😀 😀

    Liked by 1 person

  7. Garfield Hug says:

    Oh my….wow!! ☺

    Liked by 1 person

  8. Ben Aqiba says:

    very interesting patterns

    Liked by 1 person

  9. Really intriguing…

    Liked by 1 person

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