LCM and HCF

145 and 17 L.C.M. is:
145×17
﹦2465
∴145 and 17 L.C.M. is 2465.
原因:17是質數 (prime number)，是不能和145短除。

286 and 37 H.C.F.：1
原因：37是質數，和286的公因數只有一個就是1。

LCM of 145 and 17:
145= 5X29
17= 17
∴LCM
=5X29X17
=2465

HCF of 286 and 37:
286 =2X11X13
37=37
∴HCF
=1

145 and 17 LCM is 2465

286 and 37 HCF is 1

1.2465

2.1

LCM of 145 and 17:
145= 5 * 29
17= 17
∴LCM
=5*29* 17
=2465

HCF of 286 and 37:
286 =2*11*13
37=37
∴HCF
=1

17 是質數， LCM = 145 x 17 = 2,465
37 是質數， 286 and 37 的 HCF is 1.

145 and 17 LCM is 2465
286 and 37 HCF is 1

LCM of 145 and 17:
145= 5 * 29
17= 17
∴LCM
=5*29*17
=2465

HCF of 286 and 37:
286 =2*11*13
37=37
∴HCF
=1