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feat: add is_prime

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rzmk 2023-09-22 10:40:04 -04:00
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35
notebooks/pre-algebra/unit1.ipynb
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@ -199,6 +199,41 @@
"assert get_multiples_in_range(3, 20) == {3, 6, 9, 12, 15, 18}\n",
"assert get_multiples_in_range(5, 50) == {5, 10, 15, 20, 25, 30, 35, 40, 45, 50}"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Write a program that determines whether a positive integer `n` is prime.**\n",
"\n",
"For example for `n = 7`, the output of `is_prime(7)` may be:\n",
"\n",
"```\n",
"True\n",
"```"
]
},
{
"cell_type": "code",
"execution_count": 13,
"metadata": {},
"outputs": [],
"source": [
"def is_prime(n: int) -> bool:\n",
" if n == 1: return False\n",
" for num in range(2, n):\n",
" if n % num == 0:\n",
" return False\n",
" return True\n",
"\n",
"assert is_prime(1) == False\n",
"assert is_prime(2) == True\n",
"assert is_prime(3) == True\n",
"assert is_prime(4) == False\n",
"assert is_prime(24) == False\n",
"assert is_prime(59) == True\n",
"assert is_prime(72) == False"
]
}
],
"metadata": {