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Method and examples
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Method
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Enter only ,(comma) separated number series
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Find
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- 3,7,15,31,63
- 3,6,18,72
- 1,3,5,7,9
- 2,4,8,16,32
- 20,19,17,14,10
- 1,4,9,16,25
- 1,9,17,33,49,73
- 4,10,28,82,244
- 5,17,37,65,101
- 9,11,20,31,51
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Valid Input
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4, 16, 64, 256, 1024
1, 10, 100, 1000, 10000
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Invalid Input
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4, 16, 64, 256, 1,024
1, 10, 100, 1,000, 10,000
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Coding Decoding calculator
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Solution
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Solution provided by AtoZmath.com
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Number series
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Number Series :
For given sequence, you have to find next numbers of that sequence.
How to solve :
First You have to identify the pattern of current sequence.
Most of sequence can be solved easily by taking differences of consecutive two numbers.
Some series may be
- Even, Odd series
- Difference is common number (Arithemetic progression)
- Multiplication by common number (Geometric progression)
- Prime series
- Square series
- Cube series
- Some Power series
- Fibonacci series
- Factorial series
- Rotate each digit
- and many more...
Some of the examples
Difference is common number
1. Find next number in the sequence `1,3,5,7,9`
1 | | 3 | | 5 | | 7 | | 9 | | 11 | | `+`2 | | `+`2 | | `+`2 | | `+`2 | | `+`2 |
`:.` The next number for given series `1,3,5,7,9` is `11`
Solution-1 General polynomial is `2x-1`
2. Find next number in the sequence `2,4,6,8`
2 | | 4 | | 6 | | 8 | | 10 | | `+`2 | | `+`2 | | `+`2 | | `+`2 |
`:.` The next number for given series `2,4,6,8` is `10`
Solution-1 General polynomial is `2x`
3. Find next number in the sequence `7,12,19,28,39`
7 | | 12 | | 19 | | 28 | | 39 | | 52 | | `+`5 | | `+`7 | | `+`9 | | `+`11 | | `+`13 | | | `+`2 | | `+`2 | | `+`2 | | `+`2 |
`:.` The next number for given series `7,12,19,28,39` is `52`
Solution-1 General polynomial is `x^2+2x+4`
4. Find next number in the sequence `8,15,24,39,64`
8 | | 15 | | 24 | | 39 | | 64 | | 103 | | `+`7 | | `+`9 | | `+`15 | | `+`25 | | `+`39 | | | `+`2 | | `+`6 | | `+`10 | | `+`14 | | | | `+`4 | | `+`4 | | `+`4 |
`:.` The next number for given series `8,15,24,39,64` is `103`
Solution-1 General polynomial is `0.6667x^3-3x^2+11.3333x-1`
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