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SOMME
DE QUATRE CARRÉS
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Définition Tout
nombre est somme de quatre carrés. Aucune
des partitions ne comporte quatre termes distincts. Il existe toujours un des
termes qui est répété au moins une fois. |
Exemple pour n = 412 1²+1²+7²+19²; 1²+1²+11²+17²;
1²+5²+5²+19²; 1²+11²+11²+13²;
2²+2²+2²+20²; 2²+4²+14²+14²; 3²+3²+13²+15²; 4²+6²+6²+18²;
4²+10²+10²+14²; 5²+7²+7²+17²;
5²+7²+13²+13²; 5²+9²+9²+15²; 6²+6²+12²+14²; 7²+11²+11²+11²;
9²+9²+9²+13². |
||
Liste pour n
jusqu'à 1000 |
1,
2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 22, 23, 24,
25, 27, 28, 31, 32, 33, 34, 36, 37, 40, 43, 44, 47, 48, 52, 55, 58, 60, 64, 67,
68, 72, 73, 76, 80, 82, 88, 92, 96, 97, 100, 103, 108, 112, 124, 128, 132,
136, 144, 148, 160, 172, 176, 188, 192, 208, 220, 232, 240, 256, 268, 272,
288, 292, 304, 320, 328, 352, 368, 384, 388, 400, 412,
432, 448, 496, 512, 528, 544, 576, 592, 640, 688, 704, 752, 768, 832, 880,
928, 960. |
||
a |
b |
c |
d |
a² |
b² |
c² |
d² |
a²+b²+c²+d² |
Qté |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
1 |
1 |
1 |
0 |
0 |
0 |
2 |
0 |
0 |
0 |
4 |
4 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
||
0 |
0 |
3 |
3 |
0 |
0 |
9 |
9 |
18 |
3 |
0 |
1 |
1 |
4 |
0 |
1 |
1 |
16 |
||
1 |
2 |
2 |
3 |
1 |
4 |
4 |
9 |
||
0 |
0 |
3 |
5 |
0 |
0 |
9 |
25 |
34 |
4 |
0 |
3 |
3 |
4 |
0 |
9 |
9 |
16 |
||
1 |
1 |
4 |
4 |
1 |
1 |
16 |
16 |
||
1 |
2 |
2 |
5 |
1 |
4 |
4 |
25 |
||
0 |
0 |
1 |
7 |
0 |
0 |
1 |
49 |
50 |
5 |
0 |
0 |
5 |
5 |
0 |
0 |
25 |
25 |
||
0 |
3 |
4 |
5 |
0 |
9 |
16 |
25 |
||
1 |
2 |
3 |
6 |
1 |
4 |
9 |
36 |
||
3 |
3 |
4 |
4 |
9 |
9 |
16 |
16 |
||
0 |
1 |
1 |
8 |
0 |
1 |
1 |
64 |
66 |
6 |
0 |
1 |
4 |
7 |
0 |
1 |
16 |
49 |
||
0 |
4 |
5 |
5 |
0 |
16 |
25 |
25 |
||
1 |
2 |
5 |
6 |
1 |
4 |
25 |
36 |
||
2 |
2 |
3 |
7 |
4 |
4 |
9 |
49 |
||
3 |
4 |
4 |
5 |
9 |
16 |
16 |
25 |
||
0 |
0 |
1 |
9 |
0 |
0 |
1 |
81 |
82 |
7 |
0 |
3 |
3 |
8 |
0 |
9 |
9 |
64 |
||
1 |
1 |
4 |
8 |
1 |
1 |
16 |
64 |
||
1 |
3 |
6 |
6 |
1 |
9 |
36 |
36 |
||
1 |
4 |
4 |
7 |
1 |
16 |
16 |
49 |
||
2 |
2 |
5 |
7 |
4 |
4 |
25 |
49 |
||
4 |
4 |
5 |
5 |
16 |
16 |
25 |
25 |
||
0 |
0 |
3 |
9 |
0 |
0 |
9 |
81 |
90 |
9 |
0 |
1 |
5 |
8 |
0 |
1 |
25 |
64 |
||
0 |
4 |
5 |
7 |
0 |
16 |
25 |
49 |
||
1 |
2 |
2 |
9 |
1 |
4 |
4 |
81 |
||
1 |
2 |
6 |
7 |
1 |
4 |
36 |
49 |
||
1 |
3 |
4 |
8 |
1 |
9 |
16 |
64 |
||
2 |
5 |
5 |
6 |
4 |
25 |
25 |
36 |
||
3 |
3 |
6 |
6 |
9 |
9 |
36 |
36 |
||
3 |
4 |
4 |
7 |
9 |
16 |
16 |
49 |
|
||
129 = 1² + 8² +
8² 129 = 2² + 2² + 11² 129 = 2² + 5² + 10² 129 = 4² + 7² +
8² |
Quatre fois somme de trois carrés. Le plus petit nombre ayant cette propriété. |
|
a |
b |
c |
d |
a² |
b² |
c² |
d² |
a²+b²+c²+d² |
0 |
0 |
3 |
21 |
0 |
0 |
9 |
441 |
450 |
0 |
0 |
15 |
15 |
0 |
0 |
225 |
225 |
|
0 |
1 |
7 |
20 |
0 |
1 |
49 |
400 |
|
0 |
5 |
5 |
20 |
0 |
25 |
25 |
400 |
|
0 |
5 |
8 |
19 |
0 |
25 |
64 |
361 |
|
0 |
5 |
13 |
16 |
0 |
25 |
169 |
256 |
|
0 |
9 |
12 |
15 |
0 |
81 |
144 |
225 |
|
1 |
2 |
2 |
21 |
1 |
4 |
4 |
441 |
|
1 |
2 |
11 |
18 |
1 |
4 |
121 |
324 |
|
1 |
4 |
12 |
17 |
1 |
16 |
144 |
289 |
|
1 |
5 |
10 |
18 |
1 |
25 |
100 |
324 |
|
1 |
7 |
12 |
16 |
1 |
49 |
144 |
256 |
|
2 |
2 |
9 |
19 |
4 |
4 |
81 |
361 |
|
2 |
5 |
14 |
15 |
4 |
25 |
196 |
225 |
|
2 |
6 |
7 |
19 |
4 |
36 |
49 |
361 |
|
2 |
6 |
11 |
17 |
4 |
36 |
121 |
289 |
|
2 |
9 |
13 |
14 |
4 |
81 |
169 |
196 |
|
2 |
10 |
11 |
15 |
4 |
100 |
121 |
225 |
|
3 |
4 |
5 |
20 |
9 |
16 |
25 |
400 |
|
3 |
4 |
8 |
19 |
9 |
16 |
64 |
361 |
|
3 |
4 |
13 |
16 |
9 |
16 |
169 |
256 |
|
3 |
6 |
9 |
18 |
9 |
36 |
81 |
324 |
|
3 |
7 |
14 |
14 |
9 |
49 |
196 |
196 |
|
3 |
8 |
11 |
16 |
9 |
64 |
121 |
256 |
|
4 |
8 |
9 |
17 |
16 |
64 |
81 |
289 |
|
4 |
11 |
12 |
13 |
16 |
121 |
144 |
169 |
|
5 |
5 |
12 |
16 |
25 |
25 |
144 |
256 |
|
5 |
6 |
10 |
17 |
25 |
36 |
100 |
289 |
|
5 |
10 |
10 |
15 |
25 |
100 |
100 |
225 |
|
6 |
7 |
13 |
14 |
36 |
49 |
169 |
196 |
|
7 |
8 |
9 |
16 |
49 |
64 |
81 |
256 |
|
8 |
11 |
11 |
12 |
64 |
121 |
121 |
144 |
|
9 |
9 |
12 |
12 |
81 |
81 |
144 |
144 |
|
9 |
10 |
10 |
13 |
81 |
100 |
100 |
169 |
Suite |
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Voir |
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DicoNombre |
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Cette page |
http://villemin.gerard.free.fr/Wwwgvmm/Addition/NoSoCa4f.htm
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