Question

4. The HCF and LCM of two numbers are 13 and 1989. If one of the numbers is 117.
determine the other.
5. Is the product of three numbers always equal to the product of their HCF and LCM?​

Answer 1

Answer:

I believe that the product of the HCF and LCM of two numbers is equal to the product of the two numbers.

13 x 1989 = 25857

25857 / 117 = 221 is the other.

I would check to see if it works.

117 = 3 x 3 x 13

221 = 13 x 17

HCF = 13

LCM = 3 x 3 x 13 x 17 = 1989

Success

Step-by-step explanation:

Thank you

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Answer 2

Answer:

13×1989=117×x

13×1989÷117=x

x=221.....