5.43 rounded to the nearest whole number is 5.
543
543 rounded to the nearest tens place is 540.
-543 is rational. It is a whole number so it cannot be irrational.
It is: 500
543 is not prime. 543 = 3 * 181
543
543 rounded to the nearest tens place is 540.
540
Five hundred forty.
500
0
-543 is rational. It is a whole number so it cannot be irrational.
500
It is: 500
543 is not prime. 543 = 3 * 181
Oh, dude, the least number that rounds to 6500 when you round to the nearest hundred is 6451. Like, you gotta take into account that sneaky little 51 that pushes it over the edge. So yeah, 6451 is the magic number that gets you to 6500 without breaking a sweat.
It is: 3543 = 3500 to nearest 100