6139219

Properties

Appears in sequences

• Smallest weak prime in base n.at n=25A186995
• a(n) is the smallest prime that becomes composite if any single digit of its base-n expansion is changed to a different digit (but not to zero).at n=25A323745
• Smallest weak prime in base 2n+1.at n=12A371475
• a(n) is the smallest prime that becomes composite if any single digit of its base-(2n+1) expansion is changed to a different digit (but not to zero).at n=12A371509
• Prime numbersat n=421759