86 (number) facts for kids

Eighty-six is a number that comes right after eighty-five and just before eighty-seven. It's an even number, which means you can divide it by two without anything left over. You can also divide 86 by 1, 2, 43, and 86 itself.

What is 86?

The number 86 is a natural number, which are the numbers we use for counting. It's also a composite number. This means it has more than two factors (numbers that divide into it evenly). For 86, these factors are 1, 2, 43, and 86.

Mathematical Properties of 86

• Even Number: As mentioned, 86 is an even number because it ends in a 6, which is an even digit.
• Composite Number: It can be made by multiplying smaller whole numbers together. For example, 2 multiplied by 43 equals 86.
• Sum of Primes: 86 can be written as the sum of two prime numbers in a few ways, like 3 + 83 or 7 + 79. Prime numbers are numbers greater than 1 that can only be divided by 1 and themselves.
• Non-Square Number: 86 is not a square number, meaning you can't multiply a whole number by itself to get 86. For example, 9 multiplied by 9 is 81, and 10 multiplied by 10 is 100.

86 in Everyday Life

The number 86 appears in different places:

• Cuisine: In some restaurants, "86" is a slang term used to say that an item is out of stock or that a customer should be removed.
• Science: The element Radon has an atomic number of 86. Radon is a radioactive gas that occurs naturally.
• Sports: In many sports, athletes wear jerseys with numbers, and 86 might be a player's number.