Subject: General Aptitude · Chapter: Number System · Exam: · Marks: · Difficulty:
Let $S$ be the set of prime numbers greater than or equal to 2 and less than 100. Multiply all the elements of $S$. With how many consecutive zeros will the product end?
(a)1
(b)4
(c)5
(d)10
Answer
Answer (as printed): A
Explanation
Clearly, the list of prime numbers from 2 to 99 has only 1 multiple of 2 and only 1 multiple of 5. So, number of zeros in the product $=1$.
Explanation as extracted from the printed page; notation may be imperfect.