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The series goes like this........

15, 12+52=26, 22+62=40, 42+02=16, 12+62=37, 32+72=58,

52+82=89,...........I guess now u know the next term which is....82+92=145

So its the series of sum of squares of the digits of previous term.

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11y ago
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Q: What is the Next no in series 15 26 40 16 37 58 89?
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