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12345679,这个数里缺少8,我们把它称为“缺8数”。因为12345679=333667×37,所以“缺8数”是一个合数。“缺8数”
12345679, this number is missing 8 and we call it “8 missing”. Because 12345679 = 333667 × 37, the “number of missing 8” is a composite number. “Absent 8 number”