It is 300.
2
You need at least two numbers to find a GCF. IF that's 3, 4 and 5, the GCF of consecutive nonzero integers is 1.
345 will round to 350.
345 rounded to the nearest 10 is 350
345 rounds to zero.
345 rounded to the nearest tenth is 345. There is no change.
12 345
To the nearest whole number it is 345
The ISBN of The World Is Round is 0-345-27213-7.
3
This is impossible. A two digit number n divided by 345 has a remainder equal to n. If you meant to say divided by 3,4,5 or 6 then the answer is 62.
4.9286