Sequence This

What are the next three numbers in the following sequence?

4, 6, 12, 18, 30, 42, 60, 72, 102, 108, ?, ?, ?

(Sent to us by MMG)

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April 19th, 2014 | Category: Mathematical, Word Riddles |  Email This Riddle

5 guesses to Sequence This

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• brent

  December 1, 2014 at 6:16 PM

  138 – strange sequence for sure.

• Gabriel

  December 1, 2014 at 10:18 PM

  130-142-160

• Dude

  December 2, 2014 at 5:12 AM

  Brent your first number 138 is correct. I still need the next two. Both have sisters surrounding them. Keep trying.

• brent

  December 2, 2014 at 11:24 AM

  150, 180, 192

• Dude

  December 2, 2014 at 12:02 PM

  Brent is correct and today’s winner!

  138 (137 and 139 are prime), 150 (149 and 151 are prime), 180 (179 and 181 are prime)