Python | sympy.factorint()方法
原文:https://www . geesforgeks . org/python-sympy-factorint-method/
借助sympy . factory int()方法,可以求出给定整数的因子及其对应的重数。对于小于 2 的输入,factory int()的行为如下:
- –返回空因式分解{}。
- –返回。
- –将添加到因子中,然后是因子。
语法: 因子(n)
参数: n–表示整数。
返回: 返回一个字典,其中包含 n 的质因数作为关键字 以及它们各自的乘数作为值。
示例#1:
# import factorint() method from sympy
from sympy import factorint
n = 2**3 * 3**4 * 5**6
# Use factorint() method
factor_dict = factorint(n)
print("Dictionary containing factors of {} with respective multiplicities : {}".
format(n, factor_dict))
输出:
Dictionary containing factors of 10125000
with respective multiplicities : {2: 3, 3: 4, 5: 6}
例 2:
# import factorint() method from sympy
from sympy import factorint
n = 6**4 * 13
# Use factorint() method
factor_dict = factorint(n)
print("Dictionary containing factors of {} with respective multiplicities : {}".
format(n, factor_dict))
输出:
Dictionary containing factors of 16848
with respective multiplicities : {2: 4, 3: 4, 13: 1}
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