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There are twelve hours in a half day, numbered one to twelve for both the ante meridiem (a.m.) and the post meridiem (p.m.). 12:00 p.m. is midday or noon, and 12:00 a.m. is midnight.

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Factors of 12 are those numbers that divide 12 completely without leaving any remainder. There are 6 factors of 12 among which 12 is the biggest factor and 2 and 3 are its prime factors.

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Learning the 12 multiplication table is important for kids. It helps solving arithmetic problems with multiples of 12, other basics of multiplication and concepts of math.

According to the Bible, Jacob had 12 sons, and in this same book it is mentioned that there were 12 tribes of Israel and 12 apostles. It represents the Church and the authority of God in the Bible.