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OpenStudy (anonymous):
Find GCF and LCM 420, 504
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OpenStudy (anonymous):
420 = 7*3*2*5*2 504=2*2*2*7*3*3 GCF = 7*2*3=84 LCM = (product of numbers)/hcf = (420*504)/84 = 2520
OpenStudy (across):
Factors of 420: 2^2, 5, 3, 7 Factors of 504: 2^3, 3^2, 7 GCF: (2^3)(3^2)(5)(7) = 2,520 LCM: (2^2)(3)(7) = 84
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