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Transcript of Divisibility Rules
The number in the ones place is either 0, 2, 4, 6, or 8.
Every even integer is divisible by 2.
If the sum of the digits of a number is 3, 6, or 9, then the number is divisible by 3.
If the number formed by the tens and ones place is divisible by 4 then the entire number is divisible by 4.
If the number in the ones place is a 0 or a 5, then the number is divisible by 5.
If the number is divisible by both 2 and 3, then the number is divisible by 6.
Similar to the rule for 3; however the sum must be divisible by 9.
Is 27 divisible by 3?
2+7=9, 9 is divisible by 3
27 is divisible by 3
Is 35 divisible by 3?
3+5=8, 8 is not divisible by 3
35 is not divisible by 3.
Is 7,485 divisible by 3?
7+4+8+5=24 if you do not know if 24 is divisible by 3 apply the rule again.
2+4=6, 6 is divisible by 3 so 24 is divisible by 3 and by extension so is 7,485.