Q: Is 42,021,105 a Prime Number?
A: No, 42,021,105 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 42021105 can be evenly divided by 1 3 5 7 15 21 35 41 43 105 123 129 205 215 227 287 301 615 645 681 861 903 1,135 1,435 1,505 1,589 1,763 3,405 4,305 4,515 4,767 5,289 7,945 8,815 9,307 9,761 12,341 23,835 26,445 27,921 29,283 37,023 46,535 48,805 61,705 65,149 68,327 139,605 146,415 185,115 195,447 204,981 325,745 341,635 400,201 977,235 1,024,905 1,200,603 2,001,005 2,801,407 6,003,015 8,404,221 14,007,035 and 42,021,105, with no remainder.
Since 42,021,105 cannot be divided by just 1 and 42,021,105, it is not a prime number.
| Number | 42,021,103 | 42,021,104 | 42,021,106 | 42,021,107 |
| Prime? | no | no | no | no |