How does a normal number like 255 become FF?
Step 1: What is Decimal?
Decimal is the number system you already know.
It’s called base 10 because it has 10 digits:
0 1 2 3 4 5 6 7 8 9
When you write:
345
It really means:
(3 × 100) + (4 × 10) + (5 × 1)
Because:
100 = 10²
10 = 10¹
1 = 10⁰
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