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Examples
Prime Number Check

✨

Flowchart for Prime Number Check

Count a number's divisors to see if it's prime.

Loops + decisionsAdvanced

Open it in the editor and press Run

The blocks it uses

Built from 6 kinds of block, between Start and End. Each one has a guide.

AskAsk the user for input
Create ValueCreate a variable
RepeatRepeat N times
DecisionMake a decision
Change ValueUpdate a variable
TellShow a message

Prime Number Check in Python, Java, C++, C# and JavaScript

This example is part of Pro. Open it in the editor to see its flowchart and its code in five languages.

Learn the ideas behind it

Ask questions and remember values
Loops: do it again
Decisions: if this, then that
What is a program?

More flowchart examples

Hotel Food OrderOrder dishes from a menu, then get a bill with discount and GST.
Shopping Cart & CouponsAdd up a cart, apply a coupon code, and work out delivery.
Guess the NumberThree tries to guess a secret number, with too-high/too-low hints.
CalculatorAdd, subtract, multiply or divide, with a divide-by-zero check.