The decimal expansion of a real number is 43.123456789 . Decide whether the number is rational or not. If it is rational, and of form p/q , what can you say about the prime factors of q?
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∴ 43.123456789 is a rational number of the form p/q, where 'p' and 'q' are co-primes and the prime factors of 'q' are of the form 2n. 5n, where n is nonnegative integer.
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