### Brain Teasers

# At First Glance

What is the next integer in this series?

1,000

1,000,000,000

1,000,000,000,000,000,000,000,000,000

100

1

?

1,000

1,000,000,000

1,000,000,000,000,000,000,000,000,000

100

1

?

### Answer

The series lists the smallest positive integer that contains the first appearance of a letter in the alphabet, starting with "A".one thousAnd

one Billion

one oCtillion

one hunDred

onE

thus

4 (Four)

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## Comments

Very hard...But Fun

good one... i never would have guessed that!!!

great!love it!LOVE IT!!!

doh That was so curly. I like it. I like it a lot.

srry but that didnt make any sense!!!

I didn't get that!

that was hard... I would have never of gotten it....not good at math

That was hard I don'tthink I would have gotten that even if I look at it for an hour

very cool.

Very nice.could not guess it at all

Very interesting. Would never have got the answer. I am going to pass this to a couple of family members, who think they are "so smart". If you do not mind, that is. Thanks

THAT JUNK DIDN'T MAKE SENSE. SORRY, BUT I JUST COULDN'T GET IT AND AFTER I SAW THE ANSWER, I STILL DON'T THINK IT MAKES SENSE. I AM CONFUSE!!!!!

genius. i havent heard of the number octrillion, but then again, i just passed algebra with ten points to spare, swhoo!

???????????????HUH????????????????????????????

that was cool

a = one thousAnd

b = one Billion

c =one oCtillion

d = one hunDred

e = onE

f = Four ...

----------

nice puzzle, made me REALLY THINK

b = one Billion

c =one oCtillion

d = one hunDred

e = onE

f = Four ...

----------

nice puzzle, made me REALLY THINK

never in a hundred years!

good job

good job

Cleverly done as it's a very surprizing answer. Tricky and chalenging! Great job!

Woh! That was so hard! Very clever...cool teaser.

very clever teaser...would never have guessed that. its funny how the initial 4 alphabets are so scarce in the number series

Wow

That made my brain hurt

Great teaser, I never would have gotten that

That made my brain hurt

Great teaser, I never would have gotten that

i have never even seen that puzzle but for some reson i figured it out at first glance

i am not even that smart and i cant get very smart cuz only 135 iq so i dont get y it was so hard for all these people

i am not even that smart and i cant get very smart cuz only 135 iq so i dont get y it was so hard for all these people

Very Fun!

Addition: Maybe there should have been a hint, it was very hard without it.

What about 101 as a start number? (one hundred And one)

Very nice teaser!

I tried to work it out mathematically, and was leaning toward 1 being the answer using a convoluted logarithmic function. I finally resorted to searching OEIS for the sequence 3, 9, 27, 2, 0 and came up with http://www.research.att.com/~njas/sequences/ A114181 which is [log10(n)] of http://www.research.att.com/~njas/sequences/ A029722, which is your sequence.

I tried to work it out mathematically, and was leaning toward 1 being the answer using a convoluted logarithmic function. I finally resorted to searching OEIS for the sequence 3, 9, 27, 2, 0 and came up with http://www.research.att.com/~njas/sequences/ A114181 which is [log10(n)] of http://www.research.att.com/~njas/sequences/ A029722, which is your sequence.

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