Q: Is 266,490 a Prime Number?
A: No, 266,490 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 266490 can be evenly divided by 1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 45 47 54 63 70 81 90 94 105 126 135 141 162 189 210 235 270 282 315 329 378 405 423 470 567 630 658 705 810 846 945 987 1,134 1,269 1,410 1,645 1,890 1,974 2,115 2,538 2,835 2,961 3,290 3,807 4,230 4,935 5,670 5,922 6,345 7,614 8,883 9,870 12,690 14,805 17,766 19,035 26,649 29,610 38,070 44,415 53,298 88,830 133,245 and 266,490, with no remainder.
Since 266,490 cannot be divided by just 1 and 266,490, it is not a prime number.