The factors of 18 are 1, 2, 3, 6, 9, and 18
The factors of 20 are 1, 2, 4, 5, 10, and 20
The factors of 27 are 1, 3, 9, and 27
The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42
The factors of 45 are 1, 3, 5, 9, 15, and 45
1 and 3
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42 The factors of 54 are: 1, 2, 3, 6, 9, 18, 27, 54
Factors of 18: 1,2,3,6,9,18 Factors of 42: 1,2,3,6,7,14,21,42 Factors of both: 1,2,3,6
-19
The common factors of 18 and 42 are 1, 2, 3, and 6. The factors of 18 are 1, 2, 3, 6, 9, and 18. The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. The common factors of 18 and 42 are 1, 2, 3, and 6.
They are 8, 12, 18, 20, 27, 28, 30, 42, 44, 45, 50, 52.
13 + 16 + 18 + 20 + 21 + 26 + 27 + 27 + 28 + 36 + 39 + 42 + 43 = 356
27/42 = 9/14 or 18/28
The factors of 18 are 1, 2, 3, 6, 9, and 18. The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. The common factors of 18 and 24 are 1, 2, 3, and 6, and the GCF is 6.
1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378 -1, -2, -3, -6, -7, -9, -14, -18, -21, -27, -42, -54, -63, -126, -189, -378 1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, -1, -2, -3, -6, -7, -9, -14, -18, -21, -27, -42, -54, -63, -126, -189, -378
Factors of 378: 1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378
The common factors of 18 and 42 are 1, 2, 3 and 6