For the purposes of Numerology, the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 are considered.

Given below is a summary of what each of these numbers stand for, and the numbers that they are friendly and unfriendly with.

1
One is the number of singularity, control, dominance, skill and will power.

1 is friendly with 1, 3, 4, 5, 7 and 9; and unfriendly with 2, 6 and 8.

2
Two is the number of duality, co-operation, emotion, intuition, secrecy and diplomacy.

2 is friendly with 2, 4, 6 and 9 while it is unfriendly with 1, 3, 5, 7 and 8.

3
Three is the number of creation, expression, love, affection and family life.

3 is friendly with 1, 3, 5, 6, 7, 8 and 9 and unfriendly with 2 and 4.

4
Four is the number of stability, discipline, a methodical nature, intellectual capability, and balance.

4 is friendly with 1, 2, 4, 5, 7, 8 and 9 and unfriendly with 3 and 6.

5
Five is the number of travel, communication, new experiences, change and freedom.

5 is friendly with 1, 3, 4, 5, 7 and 8 and unfriendly with 2, 6 and 9.

6
Six is the number of rewards of hard work, harmony, community relations, beauty and rhythm.

6 is friendly with 2, 3, 6 and 9 and unfriendly with 1, 4, 5, 7 and 8.

7
Seven is the number of the intellectual, culture, invention, responsibility, and philosophy.

7 is friendly with 1, 3, 4, 5, 7, 8 and 9 and unfriendly with 2 and 6.

8
Eight is the number of change, balance, transformation and endurance.

8 is friends with 3, 4, 5, 7 and 8 and not friends with 1, 2, 6 and 9.

9
Nine is the number of enthusiasm, energy, quarrels, war and aggression.

9 is friendly with 1, 2, 3, 4, 6, 7 and 9 while it is unfriendly with 5 and 8.