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The Highlander
reacted to
blamocur's post
in the thread
problem solving
with
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This is what I get too. Also, it looks like all non-prime peculiars can be represented as n=p(p^2-p-1) where p is prime. At least all...
Apr 14, 2024
The Highlander
replied to the thread
problem solving
.
As far as I can see, s/he's been given everything s/he needs to answer the question asked but appears to be reluctant to submit any...
Apr 14, 2024
The Highlander
reacted to
Dr.Peterson's post
in the thread
problem solving
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Like
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I'm often curious where an interesting problem comes from; the only other place I find this one (besides Math Forums) is here...
Apr 14, 2024
S
StackExchange
posted the thread
Intuitively, why doesn't always picking unpopular integers lower Probability of winning lotteries?
in
Probability / Statistics
.
What’s wrong with my reasoning in purple? Please pinpoint which sentence and step fails. I seek intuition. I DON’T want proofs, or...
Apr 14, 2024
Dr.Peterson
replied to the thread
problem solving
.
I'm often curious where an interesting problem comes from; the only other place I find this one (besides Math Forums) is here...
Apr 14, 2024
The Highlander
replied to the thread
problem solving
.
The blue part (above) is just a direct copy of Massist's post in Math Forums! 🤷♂️ You appear to be just sitting back and waiting for...
Apr 14, 2024
blamocur
replied to the thread
problem solving
.
This is what I get too. Also, it looks like all non-prime peculiars can be represented as n=p(p^2-p-1) where p is prime. At least all...
Apr 14, 2024
S
stephanson12
replied to the thread
problem solving
.
All primes are peculiar. If n=prime, d can be n or 1. -if d=1: d(d+1)=2 and this always is a divisor of n(n+1) -if d=n= d(d+1)=n(n+1)...
Apr 14, 2024
BigBeachBanana
replied to the thread
problem solving
.
The first 5 non-prime peculiars are 15, 95, 287, 1199, and 4607. As an interest in this problem, here's an Excel formula that checks if...
Apr 14, 2024
K
khansaheb
reacted to
The Highlander's post
in the thread
problem solving
with
Like
.
I presume you meant to write:- We call a positive integer n peculiar if, for any positive integer divisor of n, d, the integer d(d + 1)...
Apr 14, 2024
C
ConnorK
posted the thread
Fractions with a negative denominator and a +/- numerator
in
Arithmetic
.
This is the end part of a quadratic equation simplification. Does the negative sign on the numerator cancel out when the numerator is a...
Apr 14, 2024
C
ConnorK
posted the thread
Quadratic Formula
in
Beginning Algebra
.
Sorry about the blurry picture. The answer i got is correct but I'm not sure if i got there correctly.
Apr 14, 2024
The Highlander
replied to the thread
problem solving
.
What is it you are being asked to show? And what, if anything, does it suggest to you? I gave you two non-prime peculiar numbers: 15 &...
Apr 14, 2024
S
stephanson12
replied to the thread
problem solving
.
ah thank you, I understand that all prime numbers are peculair. But I don't understand your example with 15 (=5*3) and 95 (=5*19). I...
Apr 14, 2024
The Highlander
replied to the thread
problem solving
.
All Prime numbers are peculiar. Can you see why? But not all peculiar numbers are prime numbers. For example: 15 & 95 are peculiar...
Apr 14, 2024
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