# Number Series Reasoning

Number series is the most important chapter of reasoning.

Number series is easy to learn - You will enjoy it.

Following are the different type of Number series.

1. Prime Series
2. Difference Series
3. Product Series
4. Binary Series
5. Combination Series
6. Miscellaneous Series

### Prime Series

Before going to the example of prime series you must have knowledge about the prime number.

A prime number is a number greater than 1, whose only have two factors that are 1 and itself. Some Prime numbers example are 2, 3, 5, 7, 11, 13, 17, 19, 23, and 29.

1. 7,11,13,17,19,______
A)21
B)23
C)24
D)27

Explanation:

Here the numbers are consecutive primes. So, the next number is 23.

2. 4,6,9,14,21,______
A)32
B)24
c)26
D)23

Here the difference between the number is consecutive primes i.e 2,3,5 and so on.
the required term is" 21+11=32

3. 169,121,49,25,______
A)3
B)8
C)9
D)18

Here the numbers are squares of consecutive primes i.e. 132,112,72,52___
the required term is 32=9

4. 8,27,125,343,______
A)512
B)729
C)1000
D)1331

Here the numbers are cubes of consecutive primes i.e 23,33,53,73,___
the required term is 113=1331

5. 5,6,10,19,35,______
A)55
B)60
C)65
D)50

Here the difference between 5 and 6 is 1 i.e. 12
between 6 and 10 is 4 i.e. 22 So last one becomes 52 So the final answer is 35+52=60

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