why use break in python code example

Example 1: python break

nums = [6,8,0,5,3]
product = 1

for num in nums:
  if num == 0:
    product = 0
    break # stops the for loop
  product *= num

print(product)

Example 2: break function python

if( x > 3):
  print('X is greater than 3')
else:
  break