The factors of six are 1, 2 and 3 (not including six itself)
Add up these factors and you will get six:
1+2+3 = 6
Six is a perfect number as it is the sum of its factors. Can you find any other perfect numbers?
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The next perfect number is 28 = 1 + 2 + 4 + 7 + 14.
The next perfect numbers are 496 and 8128
Then 33550336, 8589869056, 137438691328, 2305843008139952128, 2658455991569831744654692615953842176, 191561942608236107294793378084303638130997321548169216.
I bet you didn't get those!
Teacher, do your students have
access to computers?
Here is the URL for a concise version of this page without comments or answers.
Students can explore the huge number of sequences in the
On-line Encyclopedia of Integer Number Sequences: