Question

The number of digits in the number N = 2^12 x 5^8 is
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Answer 1

Answer:

N=2^12×5^8

N=2^4×(2^8×5^8)

N=16×((2×5)^8

N=16×(10)^8

N=16×100000000

N=1600000000

therefore N has 10 digits