Is it possible to choose a value less than 130000 to minimize hash table collisions?

To minimize hash collisions, the size of the hash table (number of buckets) is usually chosen as a prime number larger than the expected number of elements. The number 130000 is not prime.

You can choose a smaller prime number that is sufficient to hold the data with minimal collisions. For example, if about 100000 elements are expected, you might choose the nearest prime less than 130000, such as 129997.

Main rule:

• The size of the hash table should be a prime number for uniform distribution.
• The size should match the expected load factor (usually less than 0.75).

Therefore, yes, you can choose a value less than 130000, but it must be a prime number and suitable for minimizing collisions.