Kaitlyn's Blog #4

Question 1:
1332
3 x 444
3 x 148
2 x 74
2 x 37
The prime facorization of 1332 is: 2^2 x 3^2 x 37

Queston 2:
240
3 x 80
2 x 40
2 x 20
2 x 10
2 x 5
240= 2^4 x 3 x 5

840
3 x 280
2 x 140
2 x 70
2 x 35
5 x 7
840= 2^3 x 3 x 5 x 7

gcd (240,840)= 2^3 x 3 x 5= 120
lcm (240,840)= 2^4 x 3 x 5 x 7= 1680

Question 3:
133 is not prime, it is divisible by 7 and 19. 103 is prime because it can't be divided evenly by any number except 1 and itself.

Question 4:
2= 1
3= 1
5= 0
13= 9

I divided each of them on a piece and paper, and the last number that came out that i could not do anything with was the remainder.