What is Numberphile?
What is Numberphile?
Numberphile is an educational YouTube channel featuring videos that explore topics from a variety of fields of mathematics.
What is the perfect number?
perfect number, a positive integer that is equal to the sum of its proper divisors. The smallest perfect number is 6, which is the sum of 1, 2, and 3. Other perfect numbers are 28, 496, and 8,128. The discovery of such numbers is lost in prehistory.
What are the first 10 perfect numbers?
It is known that all even perfect numbers (except 6) end in 16, 28, 36, 56, 76, or 96 (Lucas 1891) and have digital root 1. In particular, the last digits of the first few perfect numbers are 6, 8, 6, 8, 6, 6, 8, 8, 6, 6, 8, 8, 6, 8, 8….Perfect Number.
| 1 | 2 | 6 |
| 2 | 3 | 28 |
| 3 | 5 | 496 |
| 4 | 7 | 8128 |
| 5 | 13 | 33550336 |
Who is the Computerphile guy?
Brady Haran OAM
Brady Haran
| Brady Haran OAM | |
|---|---|
| Channels | Numberphile Computerphile Periodic Videos Sixty Symbols Deep Sky Videos Numberphile2 Objectivity Hello Internet nottinghamscience Backstage Science wordsoftheworld PhilosophyFile Psyfile Bibledex BradyStuff FavScientist foodskey Unmade Podcast Sofa Shop |
Is 28a perfect number?
The proper factors of 28 are 1, 2, 4, 7, and 14. The sum of these proper factors is 28. According to the definition of perfect numbers, 28 is a perfect number. therefore, 28 is a perfect number.
IS 128 a perfect number?
On finding square root of 128, we can see that 3 pairs of the same number can be formed, but one number will still remain within square root. Hence, 128 is not a perfect square.
Is 8589869056 a perfect number?
A Perfect Number is a natural number such that its value is equal to the sum of its proper divisors[1]. The first seven Perfect Numbers are: 6, 28, 496, 8128, 33550336, 8589869056, 137438691328.
Where is CGP GREY from?
New York, NYCGP Grey / Place of birth
How old is Brady Haran?
45 years (June 18, 1976)Brady Haran / Age
