a | a2 | p=2 | p divides a2 | p divides a |
---|---|---|---|---|
1 | 1 | 2 | ||
2 | 4 | 2 | ||
3 | 9 | 2 | ||
4 | 16 | 2 | ||
5 | 25 | 2 | ||
6 | 36 | 2 | ||
7 | 49 | 2 | ||
8 | 64 | 2 | ||
9 | 81 | 2 |
a | a2 | p=5 | p divides a2 | p divides a |
---|---|---|---|---|
1 | 1 | 5 | ||
2 | 4 | 5 | ||
3 | 9 | 5 | ||
4 | 16 | 5 | ||
5 | 25 | 5 | ||
6 | 36 | 5 | ||
7 | 49 | 5 | ||
8 | 64 | 5 | ||
9 | 81 | 5 |
From the above we can conculde that if a prime number 'p' divides a2, then it also divides a.