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素數就是質數,指在一個大於1的自然數中,除了1和此整數自身外,沒法被其他自然數整除的數. 100以內的素數有2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 83 89 93 97
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