268 (two hundred
ndsixty-eight) is the
natural number
In mathematics, the natural numbers are the numbers 0, 1, 2, 3, and so on, possibly excluding 0. Some start counting with 0, defining the natural numbers as the non-negative integers , while others start with 1, defining them as the positive in ...
following
267 and preceding
269.
In mathematics
*268 is an even
composite number
A composite number is a positive integer that can be formed by multiplying two smaller positive integers. Accordingly it is a positive integer that has at least one divisor other than 1 and itself. Every positive integer is composite, prime numb ...
with two prime factors, but one of the prime factors is repeated: 268 = 67*2*2.
*268 is the smallest number whose
product of digits is 6 times the
sum of its digits.
*268 is
untouchable which means that it is not the sum of the
proper divisors of any number
*268 is the sum of the consecutive
primes 131 and
137.
References
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Integers