Integer Properties Flashcards

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1
Q

Primes below 60

A

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59

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2
Q

Rebuilding the Dividend Formula

A

D = S * Q + r

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3
Q

11 Square

A

121

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4
Q

12 Square

A

144

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5
Q

13 Square

A

169

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6
Q

14 Square

A

196

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7
Q

15 Square

A

225

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8
Q

LCM and GCF formula

A

LCM = (P * Q) / GCF

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9
Q

16 Square

A

256

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10
Q

17 Square

A

289

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11
Q

18 Square

A

324

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12
Q

19 Square

A

361

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13
Q

20 Square

A

400

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14
Q

even +/- even

A

even

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15
Q

even +/- odd

A

odd

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16
Q

odd +/- odd

A

even

17
Q

even * even

A

even

18
Q

even * odd

A

even

19
Q

odd * odd

A

odd

20
Q

The sum of a series of integers

A

[n(n+1)] / 2

21
Q

combinations formula

A

nCr = n!/r!(n-r!)

22
Q

odd^any = ?

A

odd^any = odd