A)what is the prime factorization of 1332
1332
2x666
2x3x222
2x3x2x111
2x2x3x3x37
B)gcd(240,840)
240
2x120
2x6x20
2x2x3x5x4
2x2x2x3x2x5
2^4x3x5
840
2x420
2x2x210
2x2x2x105
2x2x2x5x21
2x2x2x5x3x7
2^3x3x5x7
gcd=2^3x3x5=120
lcm=2^4x3x5x7=1680
C) is 133 prime?
no, its divisible by 7 and 19
is 103 prime?
yes, it has no factors except 1 and itself.
so find this out, you attempt to make a factor tree, and if you can't, you know that its prime, or you can guess and check with a few numbers
D) 4803925/2
i just used regular old division on some paper for this
2=1
3=1
5=0 because it went evenly
13=9
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