← number properties i cards you don't know will reappear later

you should create an account to save your progress. it only takes a minute!
new card

every positive integer has at least two factors: 1 and itself. 

a prime number has only two factors, 1 and itself; in other words, no number lower than it other than 1 divides evenly into it.

i knew this card i didn't know this card
you have mastered 0 out of 33 cards
you are reviewing 0 out of 33 cards
you are learning 0 out of 33 cards

have feedback about this card? please email help@m.catharsisit.com