yes 253 is not a prime number.
0.0158
230
253
21.0833
42.1667
50.6
7 with 29 remaining 253 - 29 = 224 = 32 x 7
253.4167
There are 7 days in one week. Therefore, 253 days is equal to 253/7 = 36 remainder 1 or 36 weeks 1 day.
28.1111
Odd numbers are numbers that cannot be divided evenly by 2. 253 cannot be divided evenly by 2 so it is an odd number.