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2 x 2 x 2 x 3 x 3 x 3 = 216 2 x 2 x 2 x 2 x 2 x 3 x 3 = 288 2 x 2 x 2 x 3 x 3 x 5 = 360
The prime factorization of 648 is: 2 x 2 x 2 x 3 x 3 x 3 x 3It is: 2*2*2*3*3*3*3 = 648
2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 5 = 6480
180 = 2 x 2 x 3 x 3 x 5; 252 = 2 x 2 x 3 x 3 x 7;Common factors: 2 x 2 x 3 x 3 ie HCF = 36
2³ , 5 , 7 and 9 because 2³ * 5 * 7 * 9 = 2520 Factor tree: 2520 2 x 1260 2 x 2 x 630 2 x 2 x 2 x 315 2 x 2 x 2 x 3 x 105 2 x 2 x 2 x 3 x 3 x 35 2 x 2 x 2 x 3 x 3 x 5 x 7 The prime factorization of 2520 is 2 x 2 x 2 x 3 x 3 x 5 x 7 or 23 x 32 x 5 x 7.