555

Not sure what you want with 555. Do you want quick math practice, or are you just saying “555” as laughter?

Here are a few quick facts about the number 555:

• Decimal factorization: 555 = 3 × 5 × 37
• Divisors: 1, 3, 5, 15, 37, 111, 185, 555
• Binary: 555 = 1000101011₂
• Roman numerals: DLV
• Hexadecimal: 0x22B
• Octal: 1053₈
• In base-7: 555 = 1422₇ If you’d like, I can turn this into a short practice set or explain any of these conversions in more detail. What would you prefer?