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Secondary 1 | Maths
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Belle
Belle

Secondary 1 chevron_right Maths chevron_right Singapore

Can help on eg10&11?

Thanks

Date Posted: 2 months ago
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Eric Nicholas K
Eric Nicholas K's answer
1242 answers (Tutor Details)
1st
HCF: Just take the lowest powers of each prime factor (if one number has no factor 5, then 5 cannot be part of the HCF), then multiply all.

LCM: Just take the highest powers of each prime factor, then multiply all.