Guest Session: 1 Question Remaining.
Create Account
to save progress.
Login
Primes
hard
0:00.0
Which of these is a Fermat prime (
2
2
n
+
1
2^{2^n} + 1
2
2
n
+
1
)?
A
3
3
3
B
5
5
5
C
17
17
17
D
257
257
257
Submit Answer