Divisibility Rules
SSAT Upper Level · Flashcards · Recall
SSAT UPPER LEVEL · FLASHCARDS
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QUESTION
State the divisibility rule for
4
4
4
.
QUESTION
State the divisibility rule for
8
8
8
.
QUESTION
State the divisibility rule for
5
5
5
.
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ANSWER
Divisible by
5
5
5
iff the last digit is
0
0
0
or
5
5
5
. Since
10
≡
0
(
m
o
d
5
)
10 \equiv 0 \pmod{5}
10
≡
0
(
mod
5
)
, the number is divisible by 5 precisely when its units digit is 0 or 5.
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