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##### Asked by: Ticiano Bawvykin

personal finance frugal living# How many different iPhone passcodes are there?

With a four digit PIN, there are a possible

**10,000**combinations. But with a six digit code, there are 1millionpossible combos, making it a lot tougher for someone tocrack yoursecurity code.

Simply so, how many possible iPhone passcodes are there?

Six-digit **passcodes** The **passcode** you use on your TouchID-enabled**iPhone** and iPad will now have six digits insteadof four. Ifyou use Touch ID, it's a change you'll hardly notice.But with onemillion **possible** combinations — instead of10,000— your **passcode** will be a lot toughertocrack.

**the digits**from 1 to 9wereallowed (with no

**digit**repeated), then

**the**answerwould be 9*8*7*

**6***5*4 = 60480.

**The**tricky partcomeswhen

**the digit**0 is allowed: suppose that you wanted toforma

**6**-

**digit**number using

**digits**from0,1,,9without repeating a

**digit**.

Likewise, how many combinations are there for a 4 digit passcode?

10,000

1234 accounts for 10.7% of all pins, followed by 1111and0000. Just these three combinations account for 18.6% of pinsandthe **most common** 20 combinations are responsible for morethana quarter of all pins in use.