本文实例讲述了Python实现的求解最小公倍数算法。分享给大家供大家参考,具体如下:
简单分析了一下,前面介绍的最大公约数的求解方法跟最小公倍数求解方法类似,只需要改一个简单的条件,然后做一点简单的其他计算。问题的解决也是基于分解质因式的程序。
程序实现以及测试case代码如下:
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#!/usr/bin/python
from collections import Counter
def PrimeNum(num):
r_value = []
for i in range ( 2 ,num + 1 ):
for j in range ( 2 ,i):
if i % j = = 0 :
break
else :
r_value.append(i)
return r_value
def PrimeFactorSolve(num,prime_list):
for n in prime_list:
if num % n = = 0 :
return [n,num / n]
def PrimeDivisor(num):
num_temp = num
prime_range = PrimeNum(num)
ret_value = []
while num not in prime_range:
factor_list = PrimeFactorSolve(num,prime_range)
ret_value.append(factor_list[ 0 ])
num = factor_list[ 1 ]
else :
ret_value.append(num)
return Counter(ret_value)
def LeastCommonMultiple(num1,num2):
dict1 = PrimeDivisor(num1)
dict2 = PrimeDivisor(num2)
least_common_multiple = 1
for key in dict1:
if key in dict2:
if dict1[key] > dict2[key]:
least_common_multiple * = (key * * dict1[key])
else :
least_common_multiple * = (key * * dict2[key])
for key in dict1:
if key not in dict2:
least_common_multiple * = (key * * dict1[key])
for key in dict2:
if key not in dict1:
least_common_multiple * = (key * * dict2[key])
return least_common_multiple
print (LeastCommonMultiple( 12 , 18 ))
print (LeastCommonMultiple( 7 , 2 ))
print (LeastCommonMultiple( 7 , 13 ))
print (LeastCommonMultiple( 24 , 56 ))
print (LeastCommonMultiple( 63 , 81 ))
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程序执行结果:
E:\WorkSpace\01_编程语言\03_Python\math>pythonleast_common_multiple.py
36
14
91
168
567
通过验证,计算结果准确。
希望本文所述对大家Python程序设计有所帮助。
原文链接:https://blog.csdn.net/grey_csdn/article/details/71429966