Complete the series 7,16,28,40,54,?
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7, 16, 28, 40, 54,_____
When we examine this pattern we realize that it is an increasing pattern.
We need to find the pattern for the increase.
Lets take the prime numbers from 7 given that it is the smallest prime number in the series.
We have :
7, 11, 13, 17, 19, 23, 29,....
Lets subtract the prime numbers from the numbers as from 16 in that order from 11.
We have:
5, 15, 23, 35,
The difference is :
10, 8, 12..
The difference for this is :
-2, 4,..?
Using the concept of prime numbers, the next prime number after 2 is 3.
The next number is - 3. After this the next number is the square of -3.
This we observe from :
-2 and the next number is (-2)² which is 4.
Applying this in the patterns we get :
12 + - 3 = 9
35 + 9 = 44
44 + 23 = 67
The next number is thus 67.
When we examine this pattern we realize that it is an increasing pattern.
We need to find the pattern for the increase.
Lets take the prime numbers from 7 given that it is the smallest prime number in the series.
We have :
7, 11, 13, 17, 19, 23, 29,....
Lets subtract the prime numbers from the numbers as from 16 in that order from 11.
We have:
5, 15, 23, 35,
The difference is :
10, 8, 12..
The difference for this is :
-2, 4,..?
Using the concept of prime numbers, the next prime number after 2 is 3.
The next number is - 3. After this the next number is the square of -3.
This we observe from :
-2 and the next number is (-2)² which is 4.
Applying this in the patterns we get :
12 + - 3 = 9
35 + 9 = 44
44 + 23 = 67
The next number is thus 67.
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