Which of these is the correct conversion factor for radians per second\text{radians per second}radians per second to RPM\text{RPM}RPM?
602π\frac{60}{2\pi}2π60
2π60\frac{2\pi}{60}602π
2π×602\pi \times 602π×60
12π\frac{1}{2\pi}2π1