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43 is not evenly divisible by any prime lower than itself - so 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
43 is a Prime number.
It is prime.
Prime Number

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8y ago

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