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Nice sequence (Posted on 2003-08-01)

1,2,6,42,____...

What comes next?

See The Solution Submitted by Silly Jilly

Rating: 2.3333 (6 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

Same answer, different reason

| Comment 4 of 10 |

I got 1806 also, but I figured each number was multiplied by the next prime:

1*2=2
2*3=6
6*7=42
42*43=1806
1806*1811=3270666

But I like DJ's answer better. No point in making things unnecessarily complicated. Primality is just the first thing that occured to me....

Posted by Brian Wainscott on 2003-08-01 10:26:05

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