# math vocabulary

 are multiplied together to get a number Example: 2 and 3 are factors of 6 Factors can be divided evenly by a number Example: 5,10,15,20 are all multiples of 5 Multiples a number with more than two factors Example: 10 has factors of 1, 2, 5, 10. Composite number a number with exactly 2 factors (the number itself and 1) Example: 7 has factors of 1 & 7. Prime number the highest factor that 2 numbers have in common. Example: the factors of 6 are 1, 2, 3, and 6. The factors of 9 are 1, 3, and 9. Greatest Common Factor (GCF)GCF of 6 and 9 is 3. the smallest multiple that 2 numbers have in common Least Common Multiple (LCM)Example: Multiples of 3 are 3, 6, 9, 12, 15.... Multiples of 4 are 4, 8, 12, 16.... The LCM of 3 and 4 is 12. a number, written as a product of its prime factors. Prime FactorizationExample: 140 can be written as 2 x 2 x 5 x 7. (All of these are prime factors of 140). a fraction where the numerator and denominator are interchanged. ReciprocalExample: the reciprocal of 3/5 is 5/3 a symbol or letter that can stand for a number in an expression or equation Variable the product of a number multiplied by itself Perfect squareEx: 9=3x3. 9 is a perfect square a fraction in which the numerator is larger than the denominator Improper fractionEx: 9/4 the sum of a whole number and a fraction Mixed numberEx: 5 1/4 the distance around the outside of a circle Circumference the widest distance across a circle, always passes through the center Diameter the distance from any point on the circle to the center Radius Authordagoddard ID28712 Card Setmath vocabulary Descriptionjr. high level math terms Updated2010-08-02T13:38:16Z Show Answers