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19 March, 03:36

Is 43 prime or composite

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  1. 19 March, 05:55
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    It is prime

    43 : 2 = 21 + 1

    43 : 3 = 14 + 1

    43 : 5 = 8 + 3

    43 : 7 = 6 + 1

    43 : 11 = 3 + 10

    43 : 13 = 3 + 4

    43 : 17 = 2 + 9

    43 : 19 = 2 + 5

    43 : 23 = 1 + 20

    43 : 29 = 1 + 14

    43 : 31 = 1 + 12

    43 : 37 = 1 + 6

    43 : 41 = 1 + 2
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