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* Update strassen_matrix_multiplication.py * Update matrix_operation.py * Update enigma_machine2.py * Update enigma_machine.py * Update enigma_machine2.py * Update rod_cutting.py * Update external_sort.py * Update sol1.py * Update hill_cipher.py * Update prime_numbers.py * Update integration_by_simpson_approx.py
30 lines
676 B
Python
30 lines
676 B
Python
#!/usr/bin/env python3
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"""
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module to operations with prime numbers
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"""
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def check_prime(number):
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"""
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it's not the best solution
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"""
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special_non_primes = [0, 1, 2]
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if number in special_non_primes[:2]:
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return 2
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elif number == special_non_primes[-1]:
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return 3
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return all(number % i for i in range(2, number))
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def next_prime(value, factor=1, **kwargs):
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value = factor * value
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first_value_val = value
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while not check_prime(value):
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value += 1 if not ("desc" in kwargs.keys() and kwargs["desc"] is True) else -1
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if value == first_value_val:
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return next_prime(value + 1, **kwargs)
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return value
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