Question: given the timer source clock is 4 MHz , and a prescaler register field value of 1 0 1 ( binary ) , what is

given the timer source clock is 4 MHz, and a prescaler register field value of 101(binary), what is the freuqency of the timer overflow if the MOD register is 428? given answer in Hz(cycles per second). I tried answer as 1864.80 but incorrect?
given the timer source clock is 4 MHz, and a prescaler

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