# Python program to find largest number in a list

• Difficulty Level : Easy
• Last Updated : 20 Apr, 2020

Given a list of numbers, the task is to write a Python program to find the largest number in given list.

Examples:

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```Input : list1 = [10, 20, 4]
Output : 20

Input : list2 = [20, 10, 20, 4, 100]
Output : 100```

Method 1 : Sort the list in ascending order and print the last element in the list.

 `# Python program to find largest``# number in a list`` ` `# list of numbers``list1 ``=` `[``10``, ``20``, ``4``, ``45``, ``99``]`` ` `# sorting the list``list1.sort()`` ` `# printing the last element``print``(``"Largest element is:"``, list1[``-``1``])`

Output:

`Largest element is: 99`

Method 2 : Using max() method

 `# Python program to find largest``# number in a list`` ` `# list of numbers``list1 ``=` `[``10``, ``20``, ``4``, ``45``, ``99``]`` ` ` ` `# printing the maximum element``print``(``"Largest element is:"``, ``max``(list1))`

Output:

`Largest element is: 99`

Method 3 : Find max list element on inputs provided by user

 `# Python program to find largest``# number in a list`` ` `# creating empty list``list1 ``=` `[]`` ` `# asking number of elements to put in list``num ``=` `int``(``input``(``"Enter number of elements in list: "``))`` ` `# iterating till num to append elements in list``for` `i ``in` `range``(``1``, num ``+` `1``):``    ``ele ``=` `int``(``input``(``"Enter elements: "``))``    ``list1.append(ele)``     ` `# print maximum element``print``(``"Largest element is:"``, ``max``(list1))`

Output:

```Enter number of elements in list: 4
Enter elements: 12
Enter elements: 19
Enter elements: 1
Enter elements: 99
Largest element is: 99```

Method 4 : Without using built in functions in python:

 `# Python program to find largest``# number in a list`` ` `def` `myMax(list1):`` ` `    ``# Assume first number in list is largest``    ``# initially and assign it to variable "max"``    ``max` `=` `list1[``0``]``  ` `    ``# Now traverse through the list and compare ``    ``# each number with "max" value. Whichever is ``    ``# largest assign that value to "max'.``    ``for` `x ``in` `list1:``        ``if` `x > ``max` `:``             ``max` `=` `x``     ` `    ``# after complete traversing the list ``    ``# return the "max" value``    ``return` `max`` ` ` ` `# Driver code``list1 ``=` `[``10``, ``20``, ``4``, ``45``, ``99``]``print``(``"Largest element is:"``, myMax(list1))`

Output:

`Largest element is: 99`

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