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3571

3571 is a natural number that follows 3570 and precedes 3572. In mathematics, it is a prime number, having no positive divisors other than 1 and itself. It is odd and not divisible by 2, 3, or 5—the sum of its digits is 16.

In representations, 3571 equals 0xDF3 in hexadecimal and 0b110111110011 in binary. In Roman numerals it can

3571 does not belong to any widely known named category beyond being a prime number. It is

be
written
as
MMMDLXXI.
It
is
congruent
to
3
modulo
4,
which
means
it
cannot
be
expressed
as
a
sum
of
two
squares
by
Fermat’s
theorem
on
sums
of
two
squares.
often
encountered
as
an
example
prime
in
introductory
discussions
of
primality
testing
and
modular
arithmetic.
Its
lack
of
small
divisibility
and
its
prime
status
make
it
suitable
for
illustrating
basic
tests
and
properties
of
primes
in
educational
contexts.