other
Maths Puzzle
Numerical Ability
How many factors of 1080 are perfect squares?
Read Solution (Total 2)
-
- factors 4,9,36 are perfect squares.
- 10 years agoHelpfull: Yes(0) No(1)
- perfect squars are 1,4,9,36
1080=2^3*5^1*3^3
the idea p^a*q^b*r^c where p,q,r are prime numbers a,b,c are 1,2,3,....
posssible valus for 2 is 2^0,2^2
possible values for 3 are 3^0,3^2
total possible values 2*2=4 values that are 1,4,9,36 - 8 years agoHelpfull: Yes(0) No(0)
other Other Question