Question

How many prime numbers between 10 and 90 have their unit's digit AS 9?

Answer 1

Answer:

5 prime numbers between 10 and 90 have their unit digit as 9! They are 19, 29, 59, 79 and 89.

Step-by-step explanation:

Answer 2

Answer:

19,29,59,79,89...

Step-by-step explanation:

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