+**278** is a [natural number](/wiki/natural-number) that comes after 277 and before 279. It is an [even number](/wiki/even-number), notable as a semiprime, being the product of two distinct prime numbers.
+## See also
+- [Prime Number](/wiki/prime-number)
+- [Factorization](/wiki/factorization)
+- [Integer](/wiki/integer)
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