What is 5 to the power of 7 ?What is 5 to the power of 7 ?Solution: 57 = 78,125simplify this: All that is needed is to multiply it out:5 x 5 x 5 x 5 x 5 x 5 x 5 = 78,125 So, 5 to the power of 7 is 78,125.