公因数和因数有什么不同

不成功便成仁2022-08-04  14

54和72的公因数 54和72的公因数有哪些

54和72有六个公因数,分别是1,2,3,6,9,18。

5 = 1× 54 = 2× 27 = 3× 18 = 6× 9,54的因子是1,2,3,6,9,18,27,54;

2 = 1× 72 = 2× 36 = 3× 24 = 4× 18 = 6× 12 = 8× 9,72的因子是1,2,3,4,6,8,9,12,18,24,36,72;

所以54和72的公因数是1,2,3,6,9,18。

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