What should come in place of the question mark '?' in the following number series?

7, 128, 272, 441, ?, 862- 637
- 529
- 591
- 675
- 589

Option 1 : 637

Win over the concepts of Number Series and get a step ahead with the preparations for Quantitative Aptitude with Testbook.

The series follows the following pattern:

7 + 11^{2} = 128

128 + 12^{2} = 272

272 + 13^{2} = 441

441 + 14^{2} = **637**

637 + 15^{2} = 862

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