| become rarer | 0.36 |
| get larger | 0.25 |
| only two factors | 0.50 |
| an exponent of 2 | 0.41 |
| exactly two divisors | 0.34 |
| exactly two factors | 0.29 |
| two factors | 0.26 |
| divisor | 0.25 |
| common factor | 0.25 |
| just one number | 0.25 |
| odd | 0.68 |
| divisible | 0.62 |
| equal | 0.48 |
| greater than 1 | 0.40 |
| special | 0.38 |
| important | 0.36 |
| large | 0.29 |
| mysterious | 0.25 |
| number | 0.76 |
| positive integer | 0.59 |
| natural number | 0.57 |
| whole number | 0.55 |
| divided by the number | 0.36 |
| multiplied | 0.34 |
| studied for more than 2… | 0.25 |
| found by the gimps proj… | 0.25 |
| known to date | 0.16 |