What is the next number in the series, 1,2,6,24....
2006-08-16 14:35:28 · 9 answers · asked by bre 3 in Science & Mathematics ➔ Mathematics
120. This is the factorial series.
1! = 1
2! = 1x2
3! = 1x2x3
4! = 1x2x3x4
so 5! = 1x2x3x4x5
2006-08-16 14:42:12 · answer #1 · answered by galford_sg 2 · 0⤊ 0⤋
120
2006-08-20 04:14:14 · answer #2 · answered by chris m 5 · 0⤊ 0⤋
120
2006-08-16 14:42:35 · answer #3 · answered by Anonymous · 0⤊ 0⤋
120
2006-08-16 14:40:38 · answer #4 · answered by Anonymous · 0⤊ 0⤋
120
2006-08-16 14:40:29 · answer #5 · answered by jmon 3 · 0⤊ 0⤋
Multiply by 2, to get 2
Multiply by 3, to get 6
Multiply by 4, to get 24
Multiply by 5, to get 120 <---
If you look closely, you'll notice it's the factorial series
where n! = 1 x 2 x 3 x ... x n
1! = 1
2! = 2
3! = 6
4! = 24
5! = 120
6! = 720
7! = 5040
8! = 40320
9! = 362880
10! = 3628800
Often times you can find sequences like these in the online encyclopedia of integer sequences (OEIS). Type "1,2,6,24" and it will find series A000142 (link below).
So the next number in the sequence is 120.
2006-08-16 14:44:33 · answer #6 · answered by Puzzling 7 · 2⤊ 0⤋
120 because the first is multiplied by 2, then by 3, then by 4 so you multiply the next number by 5
2006-08-16 14:42:04 · answer #7 · answered by Shadow 2 · 0⤊ 0⤋
120,
its just the factorial list
2006-08-16 14:42:16 · answer #8 · answered by iandanielx 3 · 0⤊ 0⤋
1, 2, 6, 24 ,120, ...
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1 x 2 = 2 ---> (multiply by 2)
2 x 3 = 6 ---> (multiply by 3)
6 x 4 = 24 --> (multiply by 4)
24 x 5 = 120 -> (multiply by 5)
120 x 6 = 720 -> (multiply by 6)
etc....
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2006-08-16 14:57:35 · answer #9 · answered by Anonymous · 0⤊ 0⤋