(645,2)(430,3)(258,5)(215,6)(129,10)(86,15)(43,30)
18.4286
645, 1290, 1935, 2580, 3225, 3870, 4515, 5160, 5805, 6450, 7095, . . .
9000 9999-1000 equals 8999 if you add the 1 from 1000 you will get 9000
The common multiples of 5 and 3 are the multiples of their lowest common multiple which is 15, that is they are: 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375, 390, 405, 420, 435, 450, 465, 480, 495, 510, 525, 540, 555, 570, 585, 600, 615, 630, 645, 660, 675, 690, 705, 720, 735, 750, 765, 780, 795, 810, 825, 840, 855, 870, 885, 900, 915, 930, 945, 960, 975, 990, 1005, 1020, 1035, 1050, 1065, 1080, 1095, 1110, 1125, 1140, 1155, 1170, 1185, 1200, 1215, 1230, 1245, 1260, 1275, 1290, 1305, 1320, 1335, 1350, 1365, 1380, 1395, 1410, 1425, 1440, 1455, 1470, 1485, 1500, ...
The only square factor is 1.
Just 1.
Just 1.
7 is the perfect square for 1290
1,290 is not a perfect square. The approximate square root is ± 35.916569992136
1290 doesn't have any factors that are perfect squares other than 1.
It is: 25
It is: 1
1290 = 2 x 3 x 5 x 43
1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290.
40% of 1290= 40% * 1290= 0.4 * 1290= 516
1294