oh, yes, right there, 2 goes in, and you can do this on paper if you want, or you should but 2 goes into 42 21 times, so i can just try doing it 21 times, but we're not done yet, because 21 is not a prime number, is not even listed here, keep listing the prime numbers, 21 is not prime,and so 2 does not go into 21 anymore, so we're kinda done with 2, 2's, so actually, lets see, we have 1 2 over there, but 3 does go into 21!