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a,b,c,d,.....is a sequence.the number of factors of a,b,c,d,....is 2,3,4,5,....find the minimum value of a in natural number

Rafe wrote:$a,b,c,d,.....$ is a sequence.the number of products of $a,b,c,d,....$ is $2,3,4,5,....$ find the minimum value of a in natural number

How can a natural number have a limited number of products ?
Are you talking about factors ?

Rafe wrote:a,b,c,d,.....is a sequence.the number of factors of a,b,c,d,....is 2,3,4,5,....find the minimum value of a in natural number

Factor means prime factor or only factor?

i mean all factors.such as 8 has 4 factors

I think you're talking about this sequence
$2,4,8,16.....,2^n$

$2^n$ has $(n+1)$ factors.

Fahim Shahriar wrote:I think you're talking about this sequence
$2,4,8,16.....,2^n$

$2^n$ has $(n+1)$ factors.

I think that is it. And, so, $a=2$

I don't think so.You said $a=4$.But $4$ has $3$ factors. But in the question Rafe said $a$ has $2$ factors. So $a$ can't be $4$. I think Fahim Bhai may be correct.

Prosenjit Basak wrote:I don't think so.You said $a=4$.But $4$ has $3$ factors. But in the question Rafe said $a$ has $2$ factors. So $a$ can't be $4$. I think Fahim Bhai may be correct.

...... that really was a lousy mistake.

Nothing to worry about that . To err is human........