Python Classroom notes 01/Sep/2026

looping

• Kid now knows
  • and
  • or
  • not

Sample – 1

• Sum of all numbers from 1 to 10

result = 0
start = 1
end = 10
until start <= end
   result = result + start
   start = start + 1
say result

Sample – 2

• Factorial of a number

number = 5
result = 1
start = 1
until start <= number:
   result = result * start
   start = start + 1
say result

Sample – 3

• Refer Here for project euler problem 1
• Solution

start = 1
end = 10
result = 0
until start < 10
    if start % 3 == 0 or start % 5 == 0
      result = result + start
    start = start + 1
say result

Sample – 4

• Refer Here
• solution

a = 1
b = 2
result = 2
until a + b <  100
    c = a + b
    if c % 2 == 0
        result = result + c
    a = b
    b = c
say result

Exercise

• Find if the number is prime or not