If you mean 21517 then it is an integer because it is a whole number.
If you mean 2.1517 then it is not an integer because it is not a whole number.
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No, it is an integer.
It is positive as for example: -2*-2*-2*-2 = 16
2/3 is not an integer.
even integer.
Only if x is already an integer. For any integer x, 2x + 2 will be an even integer.
Subtract any POSITIVE integer from -2, and you get an integer that is smaller.
-2/3 is not an integer because it is a fraction.
a non-negative integer is a positive integer Example: -2 = 2 -35 = 35
1517 is not prime. It is divisible by 37.
50/25 simplifies to 2/1 which is 2 and 2 is an integer, so yes, 50/25 is an integer.
Yes: 1, 37, 41, 1517.