Prime Number
A whole number above 1 that can not be made by multiplying other whole numbers.
Example: 5 is a prime number. We cannot multiply 2, 3 or 4 together to make 5. (Only 1×5 works but we said to use other whole numbers.)
Example: 6 can be made by 2 × 3 so is NOT a prime number (it is a composite number).
All whole numbers above 1 are either composite or prime.
See: Composite Number
- hexagon
- hexahedron
- highest common factor
- hindu-arabic number system
- histogram
- horizontal
- horizontal flip
- hour
- hour hand
- hundred
- hundredth
- hyperbola
- hyperbolic functions
- hypercube
- hypocycloid
- hypotenuse
- hypothesis
- i (unit imaginary number)
- icosahedron
- identity
- image
- imaginary number
- imperial system
- improper fraction
- incenter