Description
What is 0x3D (base 16) in decimal (base 10)?
Hint
Submit your answer in our flag format. For example, if your answer was ‘22’, you would submit ‘picoCTF{22}’ as the flag.
Step 1
Converting from hexadecimal (base16) to base10
In hexadecimal the letters equals the following A = 10, B = 11, C = 12, D = 13, E = 14, F = 15 and to convert from hex to base10 you just multiply every number position by 16 to its index where 0 index is in the ones place. so to convert we can do the following 3 * 16 + 13 * 16 = 61
Flag
picoCTF{61}