Question

How many prime numbers between1 to 50 have their unit digit as 9?​

Answer 1

2 prime numbershave prime numbers between1 to 50 their unit digit as 9(19,29)

Answer 2

Answer:

2

Explanation:

We can list the prime numbers in this range as the following :

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47

We see that only 2 numbers have this property.

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