MathDB
Problems
Contests
National and Regional Contests
Spain Contests
pOMA and PErA mathematical olympiads
2024 PErA
P6
P6
Part of
2024 PErA
Problems
(1)
Not CRT, not dirichlet
Source: PErA 2024/6
3/4/2024
For each positive integer
k
k
k
, define
a
k
a_k
a
k
ā
as the number obtained from adding
k
k
k
zeroes and a
1
1
1
to the right of
2024
2024
2024
, all written in base
10
10
10
. Determine wether there's a
k
k
k
such that
a
k
a_k
a
k
ā
has at least
202
4
2024
2024^{2024}
202
4
2024
distinct prime divisors.
number theory