2203

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Number

$2203$ (two thousand, two hundred and three) is:

The $328$th prime number

The index of the $16$th Mersenne prime after $2$, $3$, $5$, $7$, $13$, $17$, $19$, $31$, $61$, $89$, $107$, $127$, $521$, $607$, $1279$:

$M_{2203} = 2^{2203} - 1 \approx 1 \cdotp 476 \times 10^{663}$

Also see

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