Bunuel wrote:

Is the prime number q equal to 29 ?

(1) q - 1 has exactly 6 positive factors.

(2) 2 and 3 are prime factors of q + 1

i. Prime Numbers q with exactly 6 factors of q-1 are: 29, 53, 149, 173, …. Not sufficient

ii. Prime Numbers q with factors 2 and 3 in q+1 are: 5, 11, 23, 29, 47, 53, 59, ….. Not sufficient

i+ii: 29, 53, … Not sufficient

E

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Hasan Mahmud