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Factors Flashcards
GCSE Mathematics (Edexcel) 1MA1
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Factors
Numbers that divide exactly into another number without leaving a remainder.
Factor of 12
1, 2, 3, 4, 6, 12.
Common factors
Factors that are shared by two or more numbers.
Highest Common Factor (HCF)
The largest factor that two or more numbers have in common.
Prime factor
A factor of a number that is also a prime number.
Prime factorisation
Writing a number as a product of its prime factors.
Factor tree
A diagram used to break a number down into its prime factors.
HCF using prime factorisation
Multiply the common prime factors of two numbers.
How to find factors of a number
List all numbers that divide into the number exactly.
Factor pair
Two numbers that multiply together to give a specific number.
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