+63 is a [natural number](/wiki/Natural_number) that follows 62 and precedes 64. It is an [odd number](/wiki/Odd_number), composed of prime factors 3 and 7, and classified as a deficient number.
+## See also
+- [Number](/wiki/Number)
+- [Integer](/wiki/Integer)
+- [Prime Factor](/wiki/Prime_Factor)
... 1 more lines