Prime factor of 300 000 000 000?

Question

I need to find out the prime factors of over 300 billion. I have a function that is adding to the list of them...very slowly! It has been running for about an hour now and i

Answer 1

The specific number is 300425737571? It trivially factors into 131 * 151 * 673 * 22567. I don't see what all the fuss is...