An astronomical number as shown above has 20 digits.  It starts and ends with "2013" and with a 3-digit number "abc" repeated in between.

This astronomical number is both divisible by 27 and 37.

Find the value of "abc" (i.e. a x 100 + b x 10 + c, NOT a x b x c).

If you think you know the answer to the above brain teaser and you are our newsletter subscriber on 13 January 2013 (Competition Date), you stand a chance to win a cash prize of RM100. Please note that the Cutoff Time for this competition is 20 January 2013 23:59 (KL time).

Competition for the RM100 cash prize is now closed.  We have 7 qualified and correct entries.

The above brain teaser was only open to our newsletter subscribers as at 13 January 2013.

If you submitted the correct answer and your name does not appear on the Honour Roll, it is likely that you do not meet the Terms and Conditions.

Although the competition is closed, if you know the answer and would like to be recognised as the all-time Top 10 Brain Teaser Solvers, you may use the form at the bottom of this page to submit your answer.

Based on the closing FBMKLCI as at 21 January 2013 of 1,635.63, we take 63 and divide by 7.  The remainder is 0, add 1 to 0 we get 1.

So the winner is lim yu wei.  Congratulations!

  1. To submit your answer, use the submission form below.
  2. The email address you enter must match the one you used for our newsletter subscription (check your email to see where we sent our latest newsletter to). 
  3. Your email address will not be published to protect your privacy but it will be used by us to validate whether you are our newsletter subscriber on the Competition Date.
  4. Choose a unique nickname for us to publish in the Honour Roll in the event that your answer is correct.
  5. One winner will be chosen from the first 20 correct entries submitted before the Cutoff Time (see below for method of choosing the winner).
  6. The winner will walk away with RM100 cash.
  7. If no correct entry is received by the Cutoff Time, the first correct entry submitted after the Cutoff Time wins the cash reward.
  8. Winner will be announced on this page using the nickname.
  9. If case of dispute, our decision is final and binding.

The winner will be determined based on the closing FBMKLCI on the 1st trading day immediately after the Cutoff Time as follows:

  1. Take only the 2 digits after the decimal point, and lets say this 2-digit number is X.
  2. Divide X by N, where N is the number of correct entries by the Cutoff Time. Take the remainder and add 1.
  3. From the number obtained in Step 2, match it with the rank on the Honour Roll to decide the winner.
  4. The rank on the Honour Roll is determined based on the order of the submission of the correct entry.

As an illustration, assuming 11 correct entries and assuming that the closing FBMKLCI is 1,623.31:

  1. X is 31 based on the 2-digit number after the decimal point of closing FBMKLCI.
  2. Since there are 11 correct entries, N is 11.
  3. Divide 31 by 11 gives a remainder of 9.  Add 1 and we get 10.
  4. The 10th person on the Honour List is therefore the winner.
  5. Please note that by intention, this method may favour slightly those who submit their entries early.

Submit your answer using the form below. 

If you answer is correct, we will publish your nickname in the Honour ​Roll on the right.

You may also appear as our all-time Top 10 Brain Teaser Solvers.

No prize will be given for the correct entry.

From time to time, our newsletter subscribers may win cash prizes by solving brain teasers that are published there.



*Must be a valid email address.
  • Your chosen nickname is required.
  • Your answer is required.
  • Your email address (for identification purpose, email address will not be published) is required.
  • Must be a valid email address.

Honour Roll

The following qualified newsletter subscribers submitted the correct answer (in the order of submission) by the Cutoff Time:

  1. lim yu wei
  2. rongping
  3. Ling
  4. Why
  5. Sweet Yee
  6. Lawrence Wong
  7. wanleng

Also see the all-time Top 10 Brain Teaser Solvers.

Modified 1/21/2013 by Loo Hai Teh

Other Correct Entries

The following people who were not qualified subscribers also submitted the correct answer (in the order of submission):

  1. Irene Ooi
  2. Fei Wen
  3. kokweng
  4. wenc
Modified 3/28/2014 by Loo Hai Teh

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