8
2+3+1=6
6+7+1=14
14+15+1=30
the odd no. is 8 2*3=6 2*7=14 2*15=30
The next number in the sequence would be 30. The general rule is multiply by 2, then add 1. 1 x 2 = 2 2 + 1 = 3 3 x 2 = 6 6 + 1 = 7 7 x 2 = 14 14 + 1 = 15 15 x 2 = 30
1, 2, 3, 5, 6, 10, 15, 30 1, 2, 3, 6, 7, 14, 21, 42
8
hcf(14, 30) = 2 lcm(14, 30) = 210 14 = 2 x 7 30 = 2 x 3 x 5 hcf = 2 lcm = 2 x 3 x 5 x 7 = 210
the odd no. is 8 2*3=6 2*7=14 2*15=30
The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30 The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42
The next number in the sequence would be 30. The general rule is multiply by 2, then add 1. 1 x 2 = 2 2 + 1 = 3 3 x 2 = 6 6 + 1 = 7 7 x 2 = 14 14 + 1 = 15 15 x 2 = 30
The factors of 16 and 30 are:16: 1, 2, 4, 8, 1630: 1, 2, 3, 5, 6, 10, 15, 30And I've emboldened the common factors. 1, 2, 4, 8, 161, 2, 3, 5, 6, 10, 15, 30
The factors of 28 are: 1, 2, 4, 7, 14, 28 The factors of 30 are: 1, 2, 3, 5, 6, 10, 15, 30
The LCM of 2, 3 and 15 is 30.
The factors of 30 are: 1, 2, 3, 5, 6, 10, 15, 30 The factors of 70 are: 1, 2, 5, 7, 10, 14, 35, 70
1, 2, 3, 5, 6, 10, 15, 30 1, 2, 3, 6, 7, 14, 21, 42 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60
1, 2, 3, 5, 6, 10, 15, 30 1, 2, 3, 6, 7, 14, 21, 42
1, 2, 3, 5, 6, 10, 15, 30 1, 2, 3, 6, 7, 14, 21, 42
8
8