How many more times basic is bleach (pH of 12) than distilled water (neutral pH)?

Answer= 100,000
Can someone explain how to get this answer?

2 answers

pH is the negative logarithm of the hydrogen ion concentration ... -log[H+]

neutral pH (water) is 7 ... 10^-7 is the dissociation constant
... H2O ⇌ H+ + OH-

a pH of 12 is 5 orders of magnitude from a pH of 7
... 10^(12 - 7) = 10^5 = 100,000
pH=-log[x]

Where x=an arbitrary number.

Each whole number increase in the ones place in pH corresponds to a 10 fold increase.

pH of 12 to 7 corresponds to 5-10 told increases. 10*10*10*10*10=100,000

Going from 12- 7 because pH measures H^+ concentrations.