Also, we can combine prime factors to get other factors: 2 x 3 x 3 = 18. 18x7= 126. Prime factorization can also sawe some time. For example, on day #123, we know 3 will work because the digits add up to a number that is a multiple ofanbsp;...
|Title||:||Number Sense and the Days of School|
|Publisher||:||FastPencil Inc - 2009-11-01|