Georgia Brown could count up to ten, identified colours and even dabbled with French, but it was only when the two-year-old took an IQ test that her soaring brainpower was established.
Georgia has an IQ of 152 and has become the youngest female celebrated member of Mensa.
The youngest daughter of a chief executive and a carpenter, Georgia has been described by Britain's leading expert on intelligent children as the brightest two-year-old she has ever met.
Professor Joan Freeman, a specialist educational psychologist, said the IQ test she conducted was unable to map Georgia's abilities fully.
'The test can only measure a limited amount, but she was incredibly creative. Even at two, she was very thoughtful. What Georgia did on some questions was of a higher quality than that which was necessary to gain a mark,' the Daily Mail quoted Professor Freeman, as saying.
'She swept right through it like a hot knife through butter. I would ask her things like 'give me two blocks or give me ten blocks' and she would manage it as easily as you would expect a five-year-old. In one test I asked her to draw a circle and she did it so perfectly,' she added.
Georgia, who is at nursery school, was also able to tell the dissimilarity between pink and purple, a talent which most children learn at primary school age.
'I said to her, 'What a pretty pink skirt, and you have tights and shoes to match'. She said, 'They're not pink, they're purple'. Most children go to school aged five and start to learn colours, let alone knowing the difference between pink and purple. I have to keep reminding myself that she is only two,' Professor Freeman said.
Georgia achieved an incredible 152, putting her in the top 0.2 per cent, or one in 500, of the population's most intelligent people.
Georgia's mother, Lucy Brown, chief executive of the charity Disability Initiative, then applied to Mensa for some extra help.
The society, which accepts only adults or children who have an IQ in the top 2 per cent, asked Georgia to join and confirmed that she was the group's youngest current member, and the youngest girl ever to join.
Lucy said that Georgia, who lives with her family in Aldershot, benefited from her large family.
Lucy added that her daughter has been taking in information from her older brothers and sisters and father, a self-employed carpenter, while not receiving any special treatment.
'There is always someone around to offer her something. But she still has temper tantrums, like you wouldn't believe, throwing herself on the floor,' Lucy said.
'She doesn't think she's better and cleverer than everyone else. She is a very kind and loving child,' she added.