2 ms·
I did memorize the sequence and still have it memorized, but I have to enumerate them. They don't have a "look" to them.
by tshaddox 5y ago
I did memorize the sequence and still have it memorized, but I have to enumerate them. They don't have a "look" to them.
- crackercrews 5y agoThere's no "look" for me either. But I immediately know that 49 is not prime because I recognize it as the answer to one of the times table math problems that I learned.