Hi!
The hectoc of the hour is:
644748
The goal is to combine the 6 numbers to a total of 100. You can use the mathematical operations + - * / ^ and the parenthesis ( ). Numbers can be combined, but you have to use all 6 of them and are not allowed to change the order. See https://hectoc.seism0saurus.de for an example. Please use CW "solution".
Have fun! Your hourly hectoc bot
by @seism0saurus
A005385: Safe primes p: (p-1)/2 is also prime
A005385 ➡️ https://oeis.org/A005385
3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/Safe_primes.html
3D graph Gen, threejs animation ➡️ https://decompwlj.com/3DgraphGen/Safe_primes.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/Safe_primes.html
#decompwlj #math #mathematics #maths #sequence #OEIS #JavaScript #php #graph #3D #threejs #webGL #triangular #numbers #primes #PrimeNumbers #palindromes #animation #FundamentalTheoremOfArithmetic #sequences #NumberTheory #classification #integer #decomposition #number #theory #equation #graphs #sieve #fundamental #theorem #arithmetic #research
150 sequences decomposed into weight × level + jump in one GIF (log(weight),log(level)):
1000 sequences decomposed on https://decompwlj.com
#decompwlj #math #mathematics #maths #sequence #OEIS #graph #triangular #numbers #primes #PrimeNumbers #palindromes #animation #FundamentalTheoremOfArithmetic #sequences #NumberTheory #classification #integer #decomposition #number #theory #equation #graphs #sieve #fundamental #theorem #arithmetic #research
A005384: Sophie Germain primes p: 2p+1 is also prime
A005384 ➡️ https://oeis.org/A005384
3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/Sophie_Germain_primes.html
3D graph Gen, threejs animation ➡️ https://decompwlj.com/3DgraphGen/Sophie_Germain_primes.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/Sophie_Germain_primes.html
#decompwlj #math #mathematics #maths #sequence #OEIS #JavaScript #php #graph #3D #threejs #webGL #triangular #numbers #primes #PrimeNumbers #palindromes #animation #FundamentalTheoremOfArithmetic #sequences #NumberTheory #classification #integer #decomposition #number #theory #equation #graphs #sieve #fundamental #theorem #arithmetic #research
Hi!
The hectoc of the hour is:
376945
The goal is to combine the 6 numbers to a total of 100. You can use the mathematical operations + - * / ^ and the parenthesis ( ). Numbers can be combined, but you have to use all 6 of them and are not allowed to change the order. See https://hectoc.seism0saurus.de for an example. Please use CW "solution".
Have fun! Your hourly hectoc bot
by @seism0saurus
Problem for May 17th from the 2026 AMS Daily Epsilon of Math Calendar
Hi!
The hectoc of the hour is:
711587
The goal is to combine the 6 numbers to a total of 100. You can use the mathematical operations + - * / ^ and the parenthesis ( ). Numbers can be combined, but you have to use all 6 of them and are not allowed to change the order. See https://hectoc.seism0saurus.de for an example. Please use CW "solution".
Have fun! Your hourly hectoc bot
by @seism0saurus
Hi!
Here is a new hectoc challenge for you:
628361
The goal is to combine the 6 numbers to a total of 100. You can use the mathematical operations + - * / ^ and the parenthesis ( ). Numbers can be combined, but you have to use all 6 of them and are not allowed to change the order. See https://hectoc.seism0saurus.de for an example. Please use CW "solution".
Have fun! Your hourly hectoc bot
by @seism0saurus
Greetings fellow humans,
A new hectoc for you:
159419
The goal is to combine the 6 numbers to a total of 100. You can use the mathematical operations + - * / ^ and the parenthesis ( ). Numbers can be combined, but you have to use all 6 of them and are not allowed to change the order. See https://hectoc.seism0saurus.de for an example. Please use CW "solution".
Have fun! Your hourly hectoc bot
by @seism0saurus
Hourly Hectoc Bot
Rémi Eismann
Pieces of Mathematics
Suat Ayöz