Final answer:
15,625 in power notation is represented as 5 to the 4th power raised to the 3rd power, or 5´³.
Step-by-step explanation:
When expressing the number 15,625 in power notation, we're looking for a way to represent it as a power of a number.
This is different from scientific notation, which typically represents numbers as a coefficient multiplied by a power of 10. For 15,625, we notice it is a power of 5 because 5´ = 625, and therefore 15,625 = 625³, which is the same as (5´)³. Hence, 15,625 in power notation can be written as 5´³, which means 5 to the 4th power raised to the 3rd power.