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harsh.champ wrote:I am also getting 2 onlyskorolkova wrote:What is the greatest prime factor of 4^(17) - 2^28?
I thought it would be 2 but apparently not
The answer says 7... I'm wondering if that's related to the 28... but then why not 17?
- by skorolkova
Sun Feb 07, 2010 2:36 pm- Forum: Problem Solving
- Topic: Prime Factorization
- Replies: 3
- Views: 1079
Prime Factorization
What is the greatest prime factor of 4^(17) - 2^28?
I thought it would be 2 but apparently not
- by skorolkova
Sun Feb 07, 2010 2:31 pm- Forum: Problem Solving
- Topic: Prime Factorization
- Replies: 3
- Views: 1079
Triangle within Circle
An equilateral triangle is inscribed within a circle with radius = 4.
What is the perimeter of the triangle?
- by skorolkova
Thu Jan 28, 2010 11:57 am- Forum: Problem Solving
- Topic: Triangle within Circle
- Replies: 9
- Views: 3822
- by skorolkova
Thu Jan 28, 2010 11:54 am- Forum: Problem Solving
- Topic: Geometry - Circles
- Replies: 5
- Views: 1561