Question

If X is prime, Y is a composite number such that X+Y=240 and their LCM is 4199. Find the X and Y.

Answer 1

Let's factorise 4199.
4199 = 13×17×19

Now given that X + Y = 240
By trial and error we found that X = 19 and Y = 13×17 = 221

Answer 2

Answer:

X=19, Y=221

Step-by-step explanation:

Factorise 4199 i. e. 13*17*19=221*19

Hence these are the two numbers.

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