### Brain Teasers

# Next Natural Numbers?

Which numbers come next in this series?

1 7 9 10 11 _ _

1 7 9 10 11 _ _

### Hint

The title might give you a clue.### Answer

13, 14The series is natural numbers with the letter 'n' in their names (one, seven, nine, ten, eleven, thirteen, fourteen - after this, the next number that doesn't have an 'n' is 'thirty'). Did you notice numerous N's in the title?

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