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Transcript
Divisibility RULES!
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A number
A number
A number
A number
A number
A number
A number
that is divisible by 2 if the last digit is EVEN
that is divisible by 3 if the SUM of its digits is divisible by 3
that is divisible by 4 if its last two digits are divisible by 4
that is divisible by 5 if the last digit is a zero or 5
that is divisible by 6 if the number is divisible by BOTH 2 and 3
that is divisible by 9 if the SUM of its digits is divisible by 9
that is divisible by 10 if the last digit is zero
YES! It is DIVISIBLE BY…
Example
2 if the last digit is even (0, 2, 4, 6, or 8).
3,978
3 if the sum of the digits is divisible by 3.
315
(3+1+5=9)
4 if the last two digits form a number divisible by 4.
8,512
5 if the last digit is 0 or 5.
14,975
6 if the number is divisible by both 2 and 3
9 if the sum of the digits is divisible by 9.
10 if the last digit is 0.
48
711
(7+1+1=9)
15,990
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