## 2 types of groups

### In mathematics, there are various types of groups, but two fundamental types are:

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In mathematics, there are various types of groups, but two fundamental types are:

1. Finite Groups: A finite group is a group that has a finite number of elements. In other words, the set of elements in a finite group is finite. An example of a finite group is the set of integers modulo n, denoted as Z/nZ. This group consists of the remainders obtained after dividing integers by n, and the group operation is usually addition or multiplication modulo n. Finite groups have a well-defined group structure and properties, such as closure, associativity, identity element, and inverse element for every element in the group.

2. Infinite Groups: An infinite group is a group that has an infinite number of elements. The set of elements in an infinite group is not finite, and it can have various sizes of infinity. An example of an infinite group is the group of integers, denoted as Z. In this group, the group operation is usually addition, and every integer has an inverse element, making it a group. Other examples include the group of real numbers under addition, the group of rational numbers under addition, and the group of complex numbers under multiplication.

Both finite and infinite groups have their own unique properties and structures, and they play a crucial role in various branches of mathematics, such as algebra, number theory, and geometry.

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