No - the ONLY natural number which has a reciprocal which is also a natural number is "1". All the other reciprocals of natural numbers will be fractions that are less than 1.
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The product of a number and its reciprocal is always one. That's what reciprocal means.
The reciprocal of any number is simply 1 divided by that number. Therefore, the reciprocal of 0.68 = 1 / 0.68 = 1.47 1.47 is the reciprocal of 0.68. Conversley, the reciprocal of 1.47 is 0.68 (1/1.47=0.68)
Taking the reciprocal (multiplicative inverse) does not affect the positive or negative status of an integer. So the reciprocal of a negative number is negative and the reciprocal of a positive number is positive. The reciprocals will be opposites (positive/negative) just as the original numbers were.
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