post 4

1- 1332 -2^2 x 3^2 x 37
2-666
2-333
3-111
3-37

2. (240,840) gcd = 120 ..... lcm = 1680
gcd-prime factorization multiply all common numbers with least exponent
lcm-prime factorization multiply all numbers with highest exponent

3.133 isn't prime, it is divisible by 7.(it may divisible by more i just stopped there) i just did guess & check.
103 i think is prime because you check all the numbers up to half way way.. which in this case would be 51.5

4.the remainder is one when divided by two.
the remainder is two when divided by three.
the remainder is zero when divided by five.
the remainder is nine when divided by thirteen.

you find the multiple of the number given before the number you are dividing the given number into... and find the difference