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258 (number)
258
is the
natural number
following
257
and preceding
259
.
In
mathematics
258
is:
a
sphenic number
a
nontotient
the
sum
of four
consecutive
prime numbers
because 258 =
59
+
61
+
67
+
71
6
3
+ 6
2
+ 6
an
Ulam number
