21, 42, 63, 84, 105, 126, 147, 168, 189, 210, 231, 252, 273, 294, 315, 336, 357, 378, 399, 420, 441, 462, 483, 504, 525, 546, 567, 588, 609, 630, 651, 672, 693, 714, 735, 756, 777, 798, 819, 840, 861, 882, 903, 924, 945, 966, 987.
7, 14, 21, 28, 35
21, 42, 63, 84 and 105
12, 24, 36, 48, 60, 72
Factors of 21 = 1, 3, 7, 21 Multiples of 21: 21, 42, 63, 84, 105, 126, 147 +21 . . .
Any multiples of 20.
8, 16, 24, 32, 40
The first 5 multiples of 21 are: 21, 42, 63, 84, and 105.
The first five multiples of 21 are: 21, 42, 63, 84, 105.
Five multiples of 42 are 1, 2, 6, 7, 21, 42.
They are 4, 8, 12.
They are 3696, 7392 and 11088.
210, 420, 630, 840, 1050 Five common multiples. Only one can be least.
7, 14, 21, 28 and 35.
7, 14, 21, 28, 35
7, 14, 21, 28, 35.
The are: 3 9 15 21 and 27
7, 14, 21, 28, 35