The HCF and LCM of two numbers are 13 and 1989, respectively.

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The HCF and LCM of two numbers are 13 and 1989, respectively. If one of the numbers is 117, then determine the other

1. 121
2. 131
3. 221
4. 231

Correct Option: C

Given,
LCM = 1989, HCF = 13
1st number = 117 and
2nd number = ?

According to the formula,
Product of LCM and HCF = Product of two numbers
∴ 1989 x 13 = 117 x ?
? = (1989 x 13)/117
? = 221