Number two as dream symbol usually bears a positive significance and stands for unity, harmony and balance of duality (yin and yang, male and female, Jung's anima and animus, physical and spiritual life, etc.). The digit two is also one of the main dream symbols for a couple and an accomplished love relationship or for an efficacious partnership. Moreover, number two in dreams may also represent true friends one is happy to have in the waking life.
If you see number two in your dream, this may also denote sociability and good communication skills, diversity and variety. The digit two may also stand for your creative and imaginative thinking.
On the other hand, 2 as a dream symbol may be reflective of your lack of independence and freedom of choice, as you always have to take into account the opinion and advice of another individual. Number 2 in dreams may also represent your impossibility to be self-dependent and stand on your own two feet- you will always cling on to the others (friends, family etc.) and expect them to solve your problems. But it may also be the other way around - the same number in a dream may be a metaphor for an overprotective individual who has the tendency of treating the others as inexperienced individuals who need guidance through life.