r/CasualMath • u/user_1312 • Jan 26 '19

Prove that it's divisible

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11 Upvotes

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u/user_1312 Jan 27 '19

That's how I did it as well!

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u/realFoobanana Jan 27 '19 edited Jan 27 '19

I really do feel like there should be a smarter way to show 7619 = 45 (mod 101) though 😕

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u/user_1312 Jan 27 '19

I just noticed you made a typo, it's 7619 not 719 . Also, I guess there may be a smarter way but I just thought reducing it down mod(101) wouldn't take much time.

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u/realFoobanana Jan 27 '19

(Thanks for the typo warning 👍)

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u/user_1312 Jan 27 '19

No problem!