It is an 'odd' number.
10001
The smallest 5 digit odd number is: 10001 The greatest 4 digit even number is: 9998 Subtracting 9998 from 10001 gives you 3.
The next odd number after any odd number is found by adding 2. If you add only 1 you get an even number. So, 9999 + 2 = 10001
10001
-10001
-10001
Odd. Even + Even = Even Odd + Odd = Even Odd + Even = Even + Odd = Odd
even times even = even odd times even = even odd times odd = odd
odd * odd = odd answer even * even = even answer odd * even = even answer
Yes. Even + Even = Even, Odd + Odd = Even and Even + Odd or Odd + Even = Odd
No. Sum of odd + odd = even Sum of odd + even = odd Sum of even + even = even
Always. even + even = even odd + odd = even even + odd = odd odd + even = odd To summarise, if you add like numbers you get even, otherwise you get odd.