Python | sympy.factorint() method Last Updated : 05 Sep, 2019 Comments Improve Suggest changes 1 Likes Like Report With the help of sympy.factorint() method, we can find the factors and their corresponding multiplicities of a given integer. For input less than 2, factorint() behaves as follows: factorint(1) - returns the empty factorization {}. factorint(0) - returns {0:1}. factorint(-n) - adds -1:1 to the factors and then factors n. Syntax: factorint(n) Parameter: n - It denotes an integer. Returns: Returns a dictionary containing the prime factors of n as keys and their respective multiplicities as values. Example #1: Python3 # 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)) Output: Dictionary containing factors of 10125000 with respective multiplicities : {2: 3, 3: 4, 5: 6} Example #2: Python3 # 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)) Output: Dictionary containing factors of 16848 with respective multiplicities : {2: 4, 3: 4, 13: 1} Comment R rupesh_rao Follow 1 Improve R rupesh_rao Follow 1 Improve Article Tags : Python Explore Python FundamentalsPython Introduction 2 min read Input and Output in Python 4 min read Python Variables 5 min read Python Operators 4 min read Python Keywords 2 min read Python Data Types 8 min read Conditional Statements in Python 3 min read Loops in Python - For, While and Nested Loops 5 min read Python Functions 5 min read Recursion in Python 4 min read Python Lambda Functions 5 min read Python Data StructuresPython String 5 min read Python Lists 4 min read Python Tuples 4 min read Python Dictionary 3 min read Python Sets 6 min read Python Arrays 7 min read List Comprehension in Python 4 min read Advanced PythonPython OOP Concepts 11 min read Python Exception Handling 5 min read File Handling in Python 4 min read Python Database Tutorial 4 min read Python MongoDB Tutorial 2 min read Python MySQL 9 min read Python Packages 10 min read Python Modules 7 min read Python DSA Libraries 15 min read List of Python GUI Library and Packages 3 min read Data Science with PythonNumPy Tutorial - Python Library 3 min read Pandas Tutorial 4 min read Matplotlib Tutorial 5 min read Python Seaborn Tutorial 15+ min read StatsModel Library - Tutorial 3 min read Learning Model Building in Scikit-learn 8 min read TensorFlow Tutorial 2 min read PyTorch Tutorial 6 min read Web Development with PythonFlask Tutorial 8 min read Django Tutorial | Learn Django Framework 7 min read Django ORM - Inserting, Updating & Deleting Data 4 min read Templating With Jinja2 in Flask 6 min read Django Templates 7 min read Python | Build a REST API using Flask 3 min read How to Create a basic API using Django Rest Framework ? 4 min read Python PracticePython Quiz 1 min read Python Coding Practice 1 min read Python Interview Questions and Answers 15+ min read Like