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Divisible By 3

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Divisible By 3

Postby nycmath » Wed Sep 23, 2026 9:21 pm

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Re: Divisible By 3

Postby Eigenvalue » Wed Sep 23, 2026 11:56 pm

Numbers that are divisible by 3 will have a sum of digits that is divisible by 3:

1+2+4=7 not divisible
1+2+5=8 not divisible
1+2+6=9 divisible
1+2+8=11 not divisible

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Re: Divisible By 3

Postby nycmath » Thu Sep 24, 2026 4:07 am

Eigenvalue wrote:Numbers that are divisible by 3 will have a sum of digits that is divisible by 3:

1+2+4=7 not divisible
1+2+5=8 not divisible
1+2+6=9 divisible
1+2+8=11 not divisible


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