Learn what natural numbers are in Maths, their properties, definition, how to identify them, and difference from whole numbers with examples and number line. A natural number is any number in the set of positive integers {1, 2, 3,…} and sometimes zero. Natural numbers are the positive whole numbers . They start at one and go up to infinity. Try This Game: “ Natural Number Hunt” 1️⃣ Set a timer for 5 minutes. 2️⃣ Walk around the house and find real things that match numbers : ⦿ 3 spoons ⦿ 7 books ⦿ 10 crayons 3️⃣ Write them down and count how many things you found! This helps connect math to the world around you.