Justin 4

1. find the prime factorization of 1332

3 444
4 111
3 37
2^2x3^2x37

2. find the gcd and lcm of 240 and 840

240

3 80
8 10
2 5
2^4x3x5

840

7 120
5 24
3 8
2^3x3x5x7

GCD=2^3x3x5=120
LCM=2^4x3x5x7=1680

3. are 103 and 133 prime?
133 is not
103 is
divide by prime numbers to find out

4.remainder when 4083925 is diveded by 2, 3, 5, and 13
a. divide by 2 R=1
b. divide by 3 R=1 the digits add up to 31
c. divide by 5 R=0
d. divide by 13 R=9