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Find number abc

If 9b80a - 90ac7 = bbbb find number abc. Multiple solutions may exist.

Correct answers: 9

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Harald August Bohr

Died 22 Jan 1951 at age 63 (born 22 Apr 1887).Danish mathematician who devised a theory that concerned generalizations of functions with periodic properties, the theory of almost periodic functions. His brother was noted physicist Niels Bohr.

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