The Singing Hedgehog Guide to:
Prime Factors 3 - Tree Method
For
the 'proper' tree method we write factor pairs, continuing to
split non-primes until we are done. Again, we start with the the
lowest prime that divides into the value.
Example: Find the product of the prime factors of 280
280 = 2 x 140
2 is prime so we just split 140
Both prime so we are finished
So the answer is 2x2x2x5x7 [or 23x5x7]
Previous Method Next Method
return to SHG main page