555

Not sure what you want with “555.” Do you mean a math problem, the 555 timer IC, or something else? Here are quick options. Tell me which you want and I’ll tailor it.

• Quick math ideas

  • Factor: 555 = 3 × 5 × 37
  • Divisible by 3 and by 5 (not by 9 or 11)
  • Roman numeral: DLV
  • Binary: 1000101011₂
  • Base 7: 555₁₀ = 1422₇
  • Quick problem: gcd(555, 1000) = 5; 555 × 123 = 68265

• If you’re studying EE, a brief intro to the 555 timer IC

• If you meant something else (base conversions, Roman numerals, etc.), tell me and I’ll adapt

What would you like to do?