You have most likely heard the term factor before. A factor is a number that goes into another. The factors of 10 for example are 1, 2, 5 and 10. Prime numbers are a special set of numbers that only ...
An example of a composite mathematical expression is 6x squared times 5x plus 15. To write this expression as a product of primes, we must factor it completely. Parts of this expression are trickier ...
The highest common factor (abbreviated to HCF) is the largest number that goes into two or more subject-numbers. For example, the common factors of 40 and 16 are 2, 4 and 8. The HCF of 40 and 16 is ...
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