69 (number) facts for kids
Sixty-nine is a number that comes right after sixty-eight and just before seventy. It is an odd number, which means you can't divide it evenly by two.
You can divide 69 by a few different numbers without getting a remainder. These numbers are 1, 3, 23, and 69 itself.
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What is the Number 69?
The number 69 is a natural number, which is a number used for counting. It's a whole number that is greater than zero.
How 69 is an Odd Number
An odd number is any integer that cannot be divided exactly by 2. When you divide an odd number by 2, there's always a remainder of 1. For example, 69 divided by 2 is 34 with a remainder of 1.
What are Divisors of 69?
A divisor is a number that divides another number exactly, with no remainder. The numbers that divide 69 perfectly are 1, 3, 23, and 69. This means 69 is a composite number, because it has more than two divisors (1 and itself).
The Number 69 in Science
The number 69 shows up in different areas of science, from tiny atoms to giant galaxies.
69 in Chemistry
In chemistry, 69 is the atomic number for an element called thulium. The atomic number tells us how many protons are in the nucleus of an atom. Thulium is a special type of metal known as a lanthanide. These metals are often used in things like lasers and magnets.
69 in Astronomy
The number 69 also appears in space!
- Messier 69 (M69): This is a globular cluster. Imagine a giant ball of thousands or even millions of stars, all held together by gravity. M69 is found in the constellation of Sagittarius, which looks like a teapot in the night sky.
- 69 Hesperia: This is an asteroid that orbits the Sun in the main-belt. The main asteroid belt is a region between Mars and Jupiter where many asteroids are found.
- NGC 69: This is the name of a galaxy. It's a type of galaxy called a barred lenticular galaxy, which means it has a central bar-shaped structure and looks a bit like a lens. NGC 69 is located in the Andromeda constellation.
69 in Computers
In computer science, the number 69 is used in something called ASCII. ASCII stands for American Standard Code for Information Interchange. It's a code that computers use to represent text characters. The number 69 in ASCII is the code for the uppercase letter E. So, when you type a capital E on your keyboard, the computer might see it as the number 69.
