Compare 986 vs 991
| Property | 986 | 991 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 171 × 291 | 9911 |
| Prime factorization | 2 × 17 × 29 | 991 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 17, 29, 34, 58, 493, 986 | 1, 991 |
| Number of properties | 0 | 10 |
| Additive primes | 89th | |
| Chen primes | 115th | |
| Emirps | 36th | |
| Isolated primes | 98th | |
| Lucky primes | 42nd | |
| Primes | 167th | |
| Sexy primes (1st member) | 74th | |
| Solinas primes | 43rd | |
| Super primes | 39th | |
| Ulam primes | 18th | |
| Roman numberals | CMLXXXVI | CMXCI |
| Base 2 | 11110110102 | 11110111112 |
| Base 3 | 11001123 | 11002013 |
| Base 4 | 331224 | 331334 |
| Base 5 | 124215 | 124315 |
| Base 6 | 43226 | 43316 |
| Base 7 | 26067 | 26147 |
| Base 8 | 17328 | 17378 |
| Base 9 | 13159 | 13219 |
| Base 10 | 98610 | 99110 |
| Base 11 | 81711 | 82111 |
| Base 12 | 6a212 | 6a712 |
| Base 13 | 5ab13 | 5b313 |
| Base 14 | 50614 | 50b14 |
| Base 15 | 45b15 | 46115 |
| Base 16 | 3da16 | 3df16 |