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When choosing a table size you are, again, weighing options. The
smaller the table you use, the faster the access times will be.
However, if you use too small a table the probability of a collision
occurring increases. As mentioned in the previous section, if you are
using the division method for calculating hash function value, the
hash table size should be a prime number. The multiplication method
relies on a hash table size that is a power of two.
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