493 is not prime. 493 = 17 * 29
493 + 8 = 501
1 493/1000
You would write it exactly as in the question.
490 to 2 s.f. Note that when the significance is uncertain, you must specify it (s.f. is an abbreviation of significant figures). You can also underline the last significant digit: 490
440
730
490
493 is not prime. 493 = 17 * 29
490
493 is 85% of 580
493 + 8 = 501
493 pokemon.
493
There Are 493 Pokemon Through Out The Whole World Of Pokemon :]
164.3333
There in no number 503, as there are only 493 Pokemon.