maths question help?

663
1 39 17 0
2 78 34 0
3 117 51 0
4 156 68 0
5 195 85 0
6 234 102 0
7 273 119 0
8 312 136 0
9 351 153 0
10 390 170 0
11 429 187 0
12 468 204 0
13 507 221 0
14 546 238 0
15 585 255 0
16 624 272 0
17 663 289 0
18 702 306 0
19 741 323 0
20 780 340 0
21 819 357 0
22 858 374 0
23 897 391 0
24 936 408 0
25 975 425 0
26 1014 442 0
27 1053 459 0
28 1092 476 0
29 1131 493 0
30 1170 510 0
31 1209 527 0
32 1248 544 0
33 1287 561 0
34 1326 578 0
35 1365 595 0
36 1404 612 0
37 1443 629 0
38 1482 646 0
39 1521 663 1
40 1560 680 0
41 1599 697 0

well, I am not sure exactly what a LCM is but just looking at the information given I notice that 13 X 3 = 39. Also, 221 X 3 = 663 and 663 / (divided by) 39 = 17 so assuming that the LCM is the lowest number that both 39 and 17 can go into evenly I would say the answer would be 663. This is just a logical guess, not a guarantee that this is the answer. Hope it helps at least :)

As 39 = 13*3, the answer is 221*3=663. This is the LCM of 39 and 17.

17 = 17
39 = 3 x 13
----------------
The LCM of 17,39 is:
3 x 13 x 17
= 663

Using "L" Divison method, you can find out.
13└39,17
17└03,17
03└03,01
---└01,01
So the LCM is 13 x 3 x 17(they are prime numbers), which is 221.

Since 39 is 3 x 13, and all three factors are mutually prime, the LCM will be 3 x 13 x 17 = 3 x 221 = 663

I don't see any need for this piece of information in order to find the LCM of the two integers.

39 is equal to 13 x 3 and 17 is prime, so they dont have and LCM unless you count 1 .