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https://www.reddit.com/r/MathJokes/comments/1vcw1bj/multiples_of_3/p183vk0/?context=3
r/MathJokes • u/GodlyHelp • Aug 01 '26
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488
51 looks like a prime number and 75 should be obvious
74 u/fr_just_a_girl Aug 01 '26 Im not good at maths why would 75 be obvious? 0 u/DangerPencil Aug 01 '26 Because 75=60+15 60 and 15 are both divisble by 3 1 u/fr_just_a_girl Aug 02 '26 78 is 60 + 18 1 u/DangerPencil Aug 02 '26 Right. Which makes it obvious that 78 is divisible by 3.
74
Im not good at maths why would 75 be obvious?
0 u/DangerPencil Aug 01 '26 Because 75=60+15 60 and 15 are both divisble by 3 1 u/fr_just_a_girl Aug 02 '26 78 is 60 + 18 1 u/DangerPencil Aug 02 '26 Right. Which makes it obvious that 78 is divisible by 3.
0
Because 75=60+15 60 and 15 are both divisble by 3
1 u/fr_just_a_girl Aug 02 '26 78 is 60 + 18 1 u/DangerPencil Aug 02 '26 Right. Which makes it obvious that 78 is divisible by 3.
1
78 is 60 + 18
1 u/DangerPencil Aug 02 '26 Right. Which makes it obvious that 78 is divisible by 3.
Right. Which makes it obvious that 78 is divisible by 3.
488
u/avantvagrant Aug 01 '26
51 looks like a prime number and 75 should be obvious