The Chevin Corporation is evaluating the following project. The CFO has determined that the appropriate risk$-$adjusted discount rate is $7\%.$ In theory, how many potential IRRs exist for the project? $($enter a whole number$)$

Year CF

$0-20,000,000$

$115,000,000$

$215,000,000$

$35,000,000$

$46,000,000$

$56,000,000$

$614,000,000$

$7-20,000,000$