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what should be multiplied to 2880 to make it a perfect square?
Read Solution (Total 15)
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- Step 1== 288*10
Step 2== 144*2*2*5
Step 3== 12*12*2*2*5 if perfect square===12*12*2*2*5*5
So answer is 5 we have to multiply it by 5 to make it as a perfect square. - 10 years agoHelpfull: Yes(50) No(1)
- 5 as 12880=2*2*2*2*3*3*5
after multiplying it by 5 we will get a perfect square - 10 years agoHelpfull: Yes(9) No(2)
- As, 2880 = 2^6 X 3^2 X 5
In order to make it a perfect square, all the powers of prime factors should be even.
So, in 2880 powers of prime factors 2 and 3 are even while power of prime factor 5 is 1 i.e odd.
To make it a perfect sq, we have to multiply 5 - 10 years agoHelpfull: Yes(6) No(0)
- 288*2=576
10*10=100
2880 *20=57600=(260)(260)
ans 20 - 10 years agoHelpfull: Yes(5) No(10)
- 120*120=14400
2880*5=14400
ans=5
- 10 years agoHelpfull: Yes(4) No(1)
- ans-5
- 10 years agoHelpfull: Yes(3) No(0)
- 5 because factors of 2880 are 2*2*2*2*2*2*3*3*5
- 8 years agoHelpfull: Yes(2) No(0)
- perfect square means 2^2=4,3^2=9,4^2=16,5^2=10,6^2=36.. in our problem we have 2880 if u want make it perfect suare u have to multiply with 5 only.. bcz starting value is zero.. 2880*5 = 14400. its a perfect square of 120
- 10 years agoHelpfull: Yes(1) No(0)
- for this type of question just note - no end with 1,4,5,6,9,00 is perfect square
so 28800 x 5 = 14400 which make last digits 00
ans is 5 - 9 years agoHelpfull: Yes(1) No(0)
- it should be multiplied with 5 to make it a perfect square...
as 2880=2^6*3^2*5 - 10 years agoHelpfull: Yes(0) No(0)
- Some time we have to solve question using option also. So i would suggest you to solve this problem using option.
Another way is use 1,2,3 like wise and check what is the answer. - 10 years agoHelpfull: Yes(0) No(0)
- 54*54=2916
2926-2880=36
- 9 years agoHelpfull: Yes(0) No(0)
- Multiple with 2880 to make it perfect square
- 9 years agoHelpfull: Yes(0) No(0)
- 2, 2880×20=57600=240^2
- 8 years agoHelpfull: Yes(0) No(0)
- to make a number perfect square, the powers of prime factors must be even.
as we can see that 2880=2^6 * 3^2 * 5^1
here, power of 5 should be make even i.e. 5^2 so that 2880 can become perfect square. so,
5*2880=14400 - 7 years agoHelpfull: Yes(0) No(0)
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