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Re: The number of even prime factors of 120 [#permalink]
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It's simple that if \(2\) is once considered then it's the only prime.

What you are saying is that \(120\) has \(2^3\) and \(180\) has \(2^2\) so \(A > B\)

But the base = prime no is \(2\) only.

avnishkanungo wrote:
Here we are asked the number of even primes. There are 3 2s in 120 and 2 2s in 180. So should the answer not be A.

The question does not ask for distinct or non repeating.
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