Daryl Tan's answer to Angelica's Junior College 2 H2 Maths question.
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To form all possible factors of 123456:
First start with 1,
then we can choose to multiply by 2 0-6 times,
by 3 0 or 1 times,
by 643 0 or 1 times.
Which gives 7x2x2.
But this includes the case where none of the prime factors are used and where all of them are used, so subtract 2 to get the final answer
First start with 1,
then we can choose to multiply by 2 0-6 times,
by 3 0 or 1 times,
by 643 0 or 1 times.
Which gives 7x2x2.
But this includes the case where none of the prime factors are used and where all of them are used, so subtract 2 to get the final answer
Date Posted:
7 years ago
thanks alot
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