# If one of the number is 117, then other number is :

The highest common factor and least common multiple of two numbers are 13 and 1989 respectively. If one of the number is 117, then other number is

(a) 224

(b) 223

(c) 221

(d) 225

**Answer: (c) 221**

**Solution:-**

The highest common factor of two numbers = 13

And least common multiple = 1989

One number 117

**Formula-Product of two numbers = highest common factor of two numbers x least common multiples of two numbers**

Then, 117 x second number = 13 x 1989

Second number = 1989 x 13 /117

= 17 x 13

= 221

So, the other number is 221.

Hence, the correct answer is option (c) 221.