STM32L476 LPRun Mode external clock source Frequency

[MGehr.3]

I'd like to you a STM32L476 continuesly in LPRun Mode with external Oscillator Frequency of 2.048MHz. But in "Reference Manual" of STM32L476 is written following: "5.3.2 Low-power run mode (LP run)To further reduce the consumption when the system is in Run mode, the regulator can be configured in low-power mode. In this mode, the system frequency should not exceed 2MHz." Can i use it with 2.048MHz? Or should i use a Oscillator with 2.000MHz? Thanks in Advance :-)!

[MGehr.3]

Will i get any Problems using it with 2.048MHz instead of 2.00MHz? Because 2.048MHz is a more common used Oscillator Frequency then 2.00MHz in my case :)