Q: IS THE POSITIVE INTEGER X , A PRIME NUMBER ?
A: X AND THE SQUARE ROOT OF INTEGER W HAVE EQUAL NO. OF UNIQUE PRIME FACTORS.
B: X AND THE PERFECT SQUARE W, HAVE THE SAME NO. OF UNIQUE FACTORS
DS. PRIME NO.
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- cans
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B) as W is a perfect square, it has atleast 3 factors: 1,W, root(w)
thus x also has atleast 3 factors and thus is not prime.
Sufficient...
A)if W = 16, X is not prime, if W=5, its prime. Insufficient
IMO B
thus x also has atleast 3 factors and thus is not prime.
Sufficient...
A)if W = 16, X is not prime, if W=5, its prime. Insufficient
IMO B
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Cans!!
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Cans!!
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Ms.Cans, thanks for your reply.cans wrote:B) as W is a perfect square, it has atleast 3 factors: 1,W, root(w)
thus x also has atleast 3 factors and thus is not prime.
Sufficient...
A)if W = 16, X is not prime, if W=5, its prime. Insufficient
IMO B
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