If the L.C.M. of p , q is r 2 t 4 s 2 , where r , s , t are prime numbers and p , q are…
Mathematics · JEE Advanced · NTA Exams — Permutations and Combinations
If the L.C.M. of p, q is r2t4s2, where r, s, t are prime numbers and p, q are the positive integers then the number of ordered pair (p, q) is
- 252
- 254
- 225
- 224 .
Answer
(D) 224 .
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