Prime
Factorisation
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How to Find the Prime Factors that Multiply to Equal a Number.
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Step 1.
Divide the number by 2
(or the lowest prime number).
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Step 2.
Divide that composite factor by 2
(or the lowest prime number).
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Step 3.
Continue to divide composite factors by prime numbers until there are no composite numbers left.
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24
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12
6
3
2
2
2
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Step 4.
Circle all prime numbers. Write all prime factors on one line.
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24
=
2 x 2 x 2 x 3
Thank you
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Read more
Fractions, Decimals, and Percentage