The list of prime numbers continues infinitely, as stated by Euclid?s theorem. The prime numbers less than 100 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89 and 97. A numb... More »

31 is a prime number. This is due to the fact that it is only divisible by itself and the number one, which is the criteria for any prime number. More »

Forty-three is a prime number. This is due to the fact that it can only be divided by itself and the number one, which is how a number qualifies as a prime number. More »

A list of odd numbers is a list of numbers that all have a remainder of 1 when divided by 2. The following is an example of a list of odd numbers: 1, 3, 5, 7, 9, 11, 13 15, 17, 19 and 21. More »

There are two sets of Korean numbers: the native Korean system and the Sino-Korean or Chinese system. The native numbers are used to identify items fewer than 100 and to indicate age. The Chinese-based numbers are used t... More »

Non-integers include fractions, decimal numbers and imaginary numbers. In math, integers include the set of all the counting numbers, their inverses or negatives, and zero, leaving all other numbers as non-integers. Ther... More »

Friendly numbers are individual numbers that make up part of what is known as a friendly pair. Friendly numbers always come in sets of two, and they are known for having a positive density. More »