1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210.
420 - 210 = 210 630 - 420 = 210 840 - 630 = 210
The GCF of 420 and 630 is 210.
210, 420, 630 and so on.
210, 420, 630, 840 . . .
210, 420, 630, 840, 1050, 1260.
105, 210, 315, 420, 525, 630, 735, 840, 945 . . .
105, 210, 315, 420, 525, 630, 735 +105 . . .
5 goes into 630 126 times.
42 - 42, 84, 126, 168, 210, 252, 294, 336, 378, 420, 588, 630 45 - 45, 90, 135, 630 630 is the LCM
105, 210, 315, 420, 525, 630
To determine how many times 8 goes into 630, you would divide 630 by 8. The quotient is 78 with no remainder, meaning that 8 goes into 630 exactly 78 times.
70, 140, 210, 280, 350, 420, 490, 560, 630, 700, 770 and just keep adding 70 until you get to infinity.