a Tim (84.156 ) do tim ( ) Tim 90 135, 270 ) ( 90, - Dicamon

Question

a Tim (84.156 ) do tim ( ) Tim 90 135, 270 ) ( 90, 135 2702 LN (16,40 1767 Sau đó tìm )

Answer

) 84 = 2 ^ 2 * 0.3, 7; 156 = 2 ^ 2, 3.13; U ^ 2 * cLN(84, 156) = 2 ^ 2 * 0.3 = 12; UC(84,156)=U(12)= 1,2,3,4,5,123; b,VCLN(90,135; 9i = 2.3 ^ 2 * 0.5; 135 = 3 ^ 3 * 0.5; 270 = 2, 3

Answer

Câu 1 :  a) 84=2²×3×7    156=2²×3×13 ƯCLN(84,156)=2²×3=12. b) 90=2×5×3²    135=5×3³    270=2×3³×5 ƯCLN(90,135,270)=3×5=15 c) 16=2⁴    40=2³×5    76=2²×19 ƯCLN(16,40,76)=2²

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