help me


by shravan
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shravan
shravan is offline
#1
Nov12-05, 11:06 PM
P: 16
how to calculate the number of prime factors of 360? please give the method
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Tide
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#2
Nov13-05, 01:46 AM
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HINT: Factor the number. :)

P.S. And, no, I am not being glib!
HallsofIvy
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#3
Nov13-05, 07:22 AM
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PF Gold
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As Tide said: start factoring. It's not that hard. I'll get you started:

360= 2(180)= 2(2)(90)= ...
surely you can do the rest yourself. Did you mean number of distinct prime factors or just number of prime factors (i.e. counting "2" more than once).

shravan
shravan is offline
#4
Nov13-05, 10:38 PM
P: 16
Unhappy

help me


I am sorry my question was wrong .however I wanted to ask how to find the no: of perfect squares in 360 without factorizing. I am sorry for sending the wrong question.
bomba923
bomba923 is offline
#5
Nov14-05, 12:39 AM
P: 736
That's a different question; prime factorization of 360 yields
[tex] 360 = 2^3 3^2 5 [/tex]
and therefore the only perfect-square factors included are
[tex] {\{1,4,9,36\}} [/tex]
from observing the prime factorization. There are only four perfect-square factors of 360.
(The "1" is trivial tho )

*Then again, I'll reply later when I'll write an explicitly mathematical way to calculate the quantity of perfect-square factors of 360-->without factorization, as you mentioned


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