Number Series Calculator

Number Series Calculator is designed to assist in preparation for IQ Tests and Number Series Tests.

With Number Series Calculator you can find the next number in a number sequence and analyze many different types of number sequences and number series (Fibonacci, Arithmetic progression, Geometric progression etc.) . Also you can search our sequence database.

Number Series Calculator can

- find the next number in a number sequence

- search our sequence database (you can use ? symbol, for example ?, ?, 3, 4, 5)

- automatically detects the symbolic expression of number sequence

- automatically detects the the type of number series

- supports number sequences of up to 10 elements in length

Examples of use - Number Series Questions

1 - From IQ Test.

What is next term in the number series 1, 1, 2, 3, 5, 8, 13, 21, 34, 55

Result:

Next number: 89

Expression: A[n] = A[n-1] + A[n-2], n = 1,2,3 ...

Method: Fibonacci

2 - From IQ Test.

Find the next number in the number sequence 1, 1, ?, ?, ?, 8

Results:

1. Next number: 13

Expression: A[n] = A[n-1] + A[n-2], n = 1,2,3 ...

Number Sequence: 1, 1, 2, 3, 5, 8

Method: Fibonacci

2. Next number: 7

Expression: A[n] = A[n-1] - A[n-2] + n, n = 1,2,3 ...

Number Sequence: 1, 1, 3, 6, 8, 8

3........

3 - Find the next number in the number sequence 1, 2, 3, 4, 5, 6

Results:

1. Next number ( Sequence Number ): 7

Expression: A[n] = n, n = 1,2,3 ...

Method: Common Differences

2. Next number: 7

Expression: A[n] = A[n-1] + 1, n = 1,2,3 ...

Method: Common Differences

4 - Find the next number (sequence number) in the number sequence 1, 2, 4, 8, 16, 32

Result:

Next number ( Sequence Number ): 64

Expression: A[n] = A[n-1] * 2, n = 1,2,3 ...

Method: Common Differences

Number Series Calculator does not guarantee finding the best solutions.

For best results, run the application 2 or 3 times.</br></br>

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