Perfect Numbers and Mersenne Primes - Numberphile
We are re-visiting Perfect Numbers and Mersenne Primes, this time with Matt Parker. More links & stuff in full description below ↓↓↓ Part Two of this interview at: http://youtu.be/q8n15q1v4X...
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Today, we are going to do some math -- unsurprising -- but we're going to take some things that have been in a Numberphile before and we're going to do a little bit more math with them. So, perfect numbers -- a bit of a staple of recreational mathematics -- everyone loves perfect numbers -- the smallest perfect number is six. [The] reason we call it a perfect number is because it equals the sum of its proper factors. So 6 is divisible by 1, is divisible by 2, it's divisible by 3, also divisible by 6? So I could put six on this list, but proper factors mean numbers that go into a number but aren't the number itself -- in fact, we can remove six from the list and six equals one plus two plus three, [this] equals the sum of its proper fa...
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Today, we are going to do some math -- unsurprising -- but we're going to take some things that have been in a Numberphile before and we're going to do a little bit more math with them. So, perfect numbers -- a bit of a staple of recreational mathematics -- everyone loves perfect numbers -- the smallest perfect number is six. [The] reason we call it a perfect number is because it equals the sum of its proper factors. So 6 is divisible by 1, is divisible by 2, it's divisible by 3, also divisible by 6? So I could put six on this list, but proper factors mean numbers that go into a number but aren't the number itself -- in fact, we can remove six from the list and six equals one plus two plus three, [this] equals the sum of its proper fa...
