555

What would you like about 555? Here are quick possibilities (pick one):

• Prime factorization: 555 = 3 × 5 × 37
• Roman numerals: 555 = DLV
• Binary: 555 = 1000101011₂
• Base 3: 555 = 202120₃
• Base 7: 555 = 1422₇
• Mod facts: 555 ≡ 6 (mod 9), 555 ≡ 2 (mod 7), 555 ≡ 0 (mod 5)

If you have a specific exam problem involving 555, paste it and I’ll help solve it.