Q: Is 554,580 a Prime Number?
A: No, 554,580 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 554580 can be evenly divided by 1 2 3 4 5 6 9 10 12 13 15 18 20 26 27 30 36 39 45 52 54 60 65 78 79 90 108 117 130 135 156 158 180 195 234 237 260 270 316 351 390 395 468 474 540 585 702 711 780 790 948 1,027 1,170 1,185 1,404 1,422 1,580 1,755 2,054 2,133 2,340 2,370 2,844 3,081 3,510 3,555 4,108 4,266 4,740 5,135 6,162 7,020 7,110 8,532 9,243 10,270 10,665 12,324 14,220 15,405 18,486 20,540 21,330 27,729 30,810 36,972 42,660 46,215 55,458 61,620 92,430 110,916 138,645 184,860 277,290 and 554,580, with no remainder.
Since 554,580 cannot be divided by just 1 and 554,580, it is not a prime number.