A form for employers to file their social security taxes.
4.91 = 491/100
491-216 = 275
1-492 = -491
Yes. 491 is prime.
491/0.1 = 4910 tenths
0.0143
491 multiplied by 3 is 1,473
491 + 284 = 775
491 centimeters = 4.91 meters
491 metres = 1610.9 feet
Itself and 1 because 491 is a prime number