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The video evaluates the density approximation $1/\ln (x)$ at $x = 100$ trillion, yielding an estimated density of 3.1%. It compares this with the actual counted density of 3.2%, noting a 0.1% discrepancy that shrinks for larger numbers.

Conditions: $x = 100$,000,000,000,000.; Density approximation is #PRIMES/x ~ $1/\ln (x)$.

The video evaluates the density approximation $1/\ln (x)$ at $x = 100$ trillion, yielding an estimated density of 3.1%. It compares this with the actual counted density of 3.2%, noting a 0.1% discrepancy that shrinks for larger numbers.

Conditions: $x = 100$,000,000,000,000.; Density approximation is #PRIMES/x ~ $1/\ln (x)$.