The difference is 2. (23 - 21 = 2).
If we are talking about two odd numbers that come right after the number 20 then we mean the two consecutive odd numbers after 20.
The difference between any consecutive odd numbers (or between any consecutive even numbers) is always 2.
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The answer is an odd number.
The different between two different odd numbers are always an even number
All prime numbers are odd numbers, except for the number 2. The difference between two odd numbers must be a multiple of 2. So, if the difference between two prime numbers is another prime number, that difference must be 2.Examples:{3, 5}{5, 7}{11, 13}{29, 31}
500
Is even numbers.