555

Not sure what you want with the number 555. Here are a few quick possibilities. Pick one or tell me your exam context and I’ll tailor it.

• Roman numerals: 555 = DLV
• Prime factorization: 555 = 3 × 5 × 37
• Binary: 555 in base-2 is 1000101011₂
• Base-3: 555 = 202120₃
• Base-5: 555 = 4210₅
• Quick property: 555 is a Harshad number (divisible by the sum of its digits, 5+5+5 = 15; 555/15 = 37)

What would you like to focus on?