36 (number) facts for kids
Thirty-six is a number that comes right after thirty-five and before thirty-seven. It is an even number, which means you can divide it by two without any remainder.
Thirty-six is special because it can be divided by many other numbers. These numbers are called its divisors. They include 1, 2, 3, 4, 6, 9, 12, 18, and 36 itself.
It is also the 6th square number. This means you get 36 when you multiply 6 by itself (6 × 6 = 36). Other square numbers are 1 (1x1), 4 (2x2), 9 (3x3), 16 (4x4), and 25 (5x5).
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The Number 36 in Math
Thirty-six shows up in many interesting ways in mathematics.
Square Numbers Explained
A square number is what you get when you multiply a whole number by itself. Imagine a square shape made of smaller squares. If each side of the big square has 6 small squares, then the total number of small squares inside is 36. That's why 36 is called a square number.
Triangular Numbers
Thirty-six is also a triangular number. This means you can arrange 36 dots into a triangle shape. You get triangular numbers by adding up a series of numbers (1 + 2 + 3 + ...). For 36, it's the sum of the first eight numbers: 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 = 36.
Other Math Facts
- If you add up the numbers from 1 to 8 (1+2+3+4+5+6+7+8), you get 36.
- In geometry, a circle has 360 degrees. Thirty-six is one-tenth of 360.
36 in Everyday Life
The number 36 appears in many places around us.
Time and Measurement
- There are 36 months in three years.
- A yard is a unit of length, and it has 36 inches.
- Some golf courses have 36 holes if they have two full 18-hole courses.
Games and Sports
- In roulette, a popular casino game, the wheel has numbers from 1 to 36 (plus 0 and 00).
- A standard dice set often includes dice with 36 possible outcomes when two dice are rolled (6 sides on the first die multiplied by 6 sides on the second die).
- In baseball, the distance between bases is 90 feet. The distance from home plate to first base is 90 feet, and 90 divided by 2.5 is 36.
Other Uses
- In chemistry, 36 is the atomic number of krypton, a noble gas.
- Some keyboards have 36 keys in their main layout.
- In photography, a standard roll of 35mm film often has 36 exposures, meaning you can take 36 pictures.
