200,000,405
Four hundred five and 00/100 dollars
four hundred and five
four hundred five thousandths
405 = 3 x 3 x 3 x 3 x 5
I assume you mean to find the prime factorization of 405. If so: 34 x 5
400
0.405
400
405-397 is 8 !
It is: 405/5 = 81
405 is a composite number because it has more than 2 factors
To the nearest ten, 410 To the nearest hundred, 400