No
2
- The factors of 28 (not including
itself) are 1, 2, 4, 7 and 14.
- Astonishingly these factors add up to
give 28.
- Because 28 has this special property
it is called a Perfect
Number.
- 28 = 13 + 33 and so is also the sum of
the first two odd cubes.
- Calculate 13 + 33 + 53 + 73. Find all the factors of
this number. Is the number Perfect?
- Does this pattern continue to be true?
Investigate.
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do with this Number Fact then...
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