Q: Is 121,221,009 a Prime Number?
A: No, 121,221,009 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 121221009 can be evenly divided by 1 3 7 9 13 21 27 39 63 91 103 117 189 273 309 351 479 721 819 927 1,339 1,437 2,163 2,457 2,781 3,353 4,017 4,311 6,227 6,489 9,373 10,059 12,051 12,933 18,681 19,467 28,119 30,177 36,153 43,589 49,337 56,043 84,357 90,531 130,767 148,011 168,129 253,071 345,359 392,301 444,033 641,381 1,036,077 1,176,903 1,332,099 1,924,143 3,108,231 4,489,667 5,772,429 9,324,693 13,469,001 17,317,287 40,407,003 and 121,221,009, with no remainder.
Since 121,221,009 cannot be divided by just 1 and 121,221,009, it is not a prime number.
| Number | 121,221,007 | 121,221,008 | 121,221,010 | 121,221,011 |
| Prime? | no | no | no | no |