To convert an improper fraction to a mixed number, divide the denominator into the numerator. The answer is the whole number. Put any remainder over the original denominator to create the fraction part. If the remainder is zero, it's just a whole number.
23/10 = 2 and 3/10
2310 = 2310/1 or 23100/10 etc
No
no number ending in 0 is prime.
101112 = 2310
2310
It is 2 × 3 × 5 × 7 × 11 = 2310
2310 is one such number.
2310
The GCF is 11.
2310->5 = 43.
2310
Then it is 2310.