Given:  1843 a.  List all the prime numbers that must be tes…

Given:  1843 a.  List all the prime numbers that must be tested to determine if 1843 is prime or composite.  NO MORE, NO LESS List in numerical order.  Separate with commas, no spaces   b.  Is 1843 prime or composite?  If composite, give its prime factorization.

The number  167,940   is divisible by  6. Pretend that you a…

The number  167,940   is divisible by  6. Pretend that you are the teacher and CLEARLY explain USING DIVISIBILITY RULES why this is the case to a 5th grader.  Begin your explanation with:    “A number is divisible by 6 if . . . Be very clear.  (Assume that the 5th grader knows nothing about these rules and they need to be taught to them.)

A tour of the White House starts every 15 minutes. A tour of…

A tour of the White House starts every 15 minutes. A tour of the Capitol Building starts every 25 minutes.  a.  If the first tour of the day for both tours leaves at 8:30 am, how many minutes will pass until they leave at the same time again? b.  If the first tour of the day for both tours leaves at 8:30 am, what TIME will they leave together again together?