The HCF and LCM of two numbers are 13 and 455 respectively. If one of the numbers lies between 75 and 125, then, that number is?
Answer & explanation
Correct answer: option 2
HCF × Product of other factors = LCM
13 × (a × b) = 455
a × b = 35
↓ ↓
7 5
Numbers are:
7 × 13 = 91
5 × 13 = 65
∴ 91 is the number