Guest Session: 1 Question Remaining.
Create Account
to save progress.
Login
Modular Arithmetic
hard
0:00.0
What is the modular multiplicative inverse of
7
(
m
o
d
20
)
7 \pmod{20}
7
(
mod
20
)
?
A
17
17
17
B
13
13
13
C
7
7
7
D
3
3
3
Submit Answer