TCS
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Numerical Ability
Number System
The prime factorization of integer N is A x A x B x C, where A, B and C are all distinct prime integers. How many factors does N have?
Read Solution (Total 3)
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- A*A*B*C=A^2*B*C
Number of factor=(2+1)*(1+1)*(1+1)=12 - 9 years agoHelpfull: Yes(5) No(1)
- N= A*A*B*C or A^2*B*C
no. of factors= (2+1)*(1+1)*(1+1)=12 - 9 years agoHelpfull: Yes(2) No(2)
- Using formula n=p1*p2....*pn
Where n is number and p1,p2 are distinct prime no
No of factor = (a1+1)*(a2+1).....*(an+1)
where a is the power of respective prime number
So the no is 3*2*2=12 - 9 years agoHelpfull: Yes(2) No(1)
TCS Other Question
3, 22, 7, 45, 15,? , 31
a)91 b)151 c)90 d)5
N is an integer and N>2, at most how many integers among N + 2, N + 3, N + 4, N + 5, N + 6, and N + 7 are prime integers?