Test 79,112 for divisibility by 2, 3, 5, 9, or 10.

Answer 1

it is even, so it's divisible by 2
The digits sum to 20, so it is not divisible by 3 or 9 (see casting out nines)
It does not end in 5 or 0, so it is not divisible by 5 or 10

Answer 2

thx

Answer 3

is this right?

Answer 4

@oobleck u are smart i am not that good at math tysm!