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 prime factorization G6 UoS #6.2 Ch.1 a number written as the product of all its prime factors 30 10 x 3 2 x 5 x 3 prime number a number with exactly 2 factors – NOT itself and 1 prime 6 3 2 x 3 or G6 UoS #6.2 Ch. 1 3 x 1 6 x 1 !
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can be repeatedly 6 ÷ 2 G6 UoS #6.2 Ch.1 repeated subtract 2 subtracted or shared evenly with equally share into 2 groups no remainder least common multiple G6 UoS #6.2 Ch. 1 smallest multiple 6 6, 12, 18, 24, 30, 36, 42, 48, … shared by a set of 9 9, 18, 27, 36, 48, 54, 63, 72,… 4, 8, 12, 16, 20, 24, 28, 32, 36,… 4 numbers LCM 36 common factor is a factor a number which is a factor for 2 2 common to all G6 UoS #6.2 Ch.1 or more numbers even numbers greatest common factor G6 UoS #6.2 Ch. 1 1, 2, 3, 4, 6, 12 12 the largest factor shared by 2 or 16 1, 2, 4, 8, 16 more numbers GCF 4 decimal 642 any number in 6.42 0.642 the base ten 64.2 number system G6 UoS #6.2 Ch.1 decimal fraction any number 0.642 64.2 with a portion 6.42 less than 1 G6 UoS #6.2 Ch. 1 thousandth 1000 balls per crate G6 UoS #6.2 Ch.1 the place in base ten 13.006 that represents one crates thousandth of a unit. 13 crates + 6 balls !
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G6 UoS #6.2 Ch. 1 Teacher Note: while decimal fraction is not a term in Go Math!, it is the term described by HM as a decimal. Students should know the difference.