Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.



Question

|
No Answers Yet

Help Wong cai hong! Anyone can contribute an answer, even non-tutors.

Answer This Question
Wong cai hong
Wong Cai Hong

Malaysia

The HCF and LCM of 270 and z are 18 and 5940. Find the value of z.

Date Posted: 4 years ago
Views: 565
Boy Mow Chau
Boy Mow Chau
4 years ago
for any 2 numbers a & b with known HCF & LCM …
a x b = HCF x LCM is always true

so, answer is z = 18 x 5940 / 270

why does this work?
you must have already learnt how to find HCF and LCM of 2 numbers by comparing the indices of their prime factors,

do a comparison of prime factors of 270, z, 18, 5940.