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2014-10-25T15:22:47+03:00
180 = 2² × 3 × 5
 70 = 2 × 5 × 7
325 =      5² × 13
220 = 2² × 5 × 11
340 = 2² × 5 × 17

cmmmc = 2² × 3 ×  5² × 7 × 11 × 13 × 17 = 5105100