作者：victoria barns 15 年以前
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pythagoras theory
Number Patterns and Sequences
factors
A factor is a whole number that divides exactly into another whole number
cube numbers
number multipied by itself twice
multiples
patterns seen in these are called sequences
multiply each counting number by another counting number to get a multiple of the two numbers
prime numbers
a number that can only be divided equally by itself and one
first prime number is 2
square numbers
a number multiplied by itself
