Wednesday, January 20, 2010

maths (brainworks)

Question: A mathematician proposed that "Every even number greater than 2 can be expressed as a sum of two prime numbers." Do you agree? Why?

My answer: Yes, I agree. In prime numbers, 2 is the only prime number that is an even number, all the other prime numbers are all odd numbers. Odd number + Odd number = Even number. So, all even numbers greater than 2 can be expressed as a sum of two prime numbers.

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