Matthew Soon's answer to Vincent's Secondary 1 Maths Singapore question.
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You wanna find the "Lowest Common Multiple" (LCM)
Start by listing out all the prime factors of each number. To get the LCM, multiply the largest factors together (include all factors).
In this case, it was 2^3 multiplied by 3, then multiplied by 5, giving us 120 days.
If 1 Jan 2019 is the 1st day,
then 120th day will be 30th April.
Hope this helps, cheers!
Start by listing out all the prime factors of each number. To get the LCM, multiply the largest factors together (include all factors).
In this case, it was 2^3 multiplied by 3, then multiplied by 5, giving us 120 days.
If 1 Jan 2019 is the 1st day,
then 120th day will be 30th April.
Hope this helps, cheers!
Date Posted:
3 years ago
Thanks for your help!
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