I know the answer. Let's see if you do.
111, 31, 23, 21, ___
2007-07-21 12:45:29 · 4 answers · asked by whitesox09 7 in Science & Mathematics ➔ Mathematics
I think it is 16. The nth term in the series is 13, written in base (n+2).
13 base 3 = 111
13 base 4 = 31
13 base 5 = 23
13 base 6 = 21
13 base 7 = 16
To the guy downstairs: 111 is not a prime number. 3 * 37 = 111
2007-07-21 12:51:40 · answer #1 · answered by lithiumdeuteride 7 · 7⤊ 0⤋
It's 13?
2007-07-21 20:13:18 · answer #2 · answered by bedbye 6 · 0⤊ 1⤋
13 Prime numbers containing the digits 1, 2 & 3 in decending order.
2007-07-21 19:53:07 · answer #3 · answered by sunrisecitycarpets 2 · 0⤊ 1⤋
there is no pattern. There must be some sort of obvious pattern to figure out in order to do this equation, therefore, there is not specific number that is next. : ]
Hannah!
2007-07-21 20:15:07 · answer #4 · answered by hαnnεrrr* 2 · 0⤊ 1⤋