128.
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No. 2 times 10 to the seventh power is 20,000,000 or twenty million. 2 to the seventh power is 2x2x2x2x2x2x2 which is 128.
2 to the 7th power is the same as 2 multiplied by itself 7 times. 2 x 2 x 2 x 2 x 2 x 2 x 2 = 128
10 to the 8th power divided by 10 to the 7th power is 10
1, 2, 4, 8, 16, 32, 64, 128
128 is neither a perfect square nor a perfect cube, it is 2⁷ (2 to the 7th power).