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1003

1003 is a natural number that comes after 1002 and before 1004. In decimal notation it is written as 1003; it can also be represented in other bases as binary 1111101011, hexadecimal 3EB, and in Roman numerals as MIII. The number is odd and composite, with prime factorization 17 × 59.

Mathematical properties: 1003 is not a prime. It is not a perfect square or a cube. Because

Use and occurrence: As a calendar year, 1003 CE belongs to the early medieval period in European

it
factors
into
17
and
59,
it
cannot
be
expressed
as
a
sum
of
two
squares.
The
digit
sum
is
4,
so
it
is
not
divisible
by
3
or
9.
It
is
congruent
to
3
modulo
4
and
to
2
modulo
7.
history
and
to
contemporaneous
developments
elsewhere
in
the
world,
though
events
associated
with
that
year
vary
by
region.
In
mathematics
and
number
theory,
1003
is
cited
as
an
example
of
a
small
composite
four-digit
number,
and
it
often
appears
in
discussions
of
base
representations
and
factorization.