The Singing Hedgehog Guide to:

Prime Factors 3 - Tree Method

return to SHG main page

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 2^{3}x5x7]

Previous Method Next Method 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 2

return to SHG main page