21, 42, 63, 84, 105, 126, 147, 168, 189, 210, 231, 252, . . .
35%.
21 is.
The GCF is 7.
1, 3, 7, 21
21- 1,3,7,29 49- 1,7,49
Factors of 21: 1, 3, 7, 21
The Least Common Multiple (LCM) for 21 90 is 630.
It was a Thursday.It was a Thursday.It was a Thursday.It was a Thursday.It was a Thursday.It was a Thursday.It was a Thursday.It was a Thursday.It was a Thursday.It was a Thursday.It was a Thursday.
They are all multiples.
They are all the multiples of 16.They are all the multiples of 16.They are all the multiples of 16.They are all the multiples of 16.
Not all multiples of 40 are multiples of 80. Only the even multiples of 40 are also multiples of 80. The odd multiples, e.g. 40, 120, 200, 280, and 360, are not multiples of 80.
absolute value is any number turned positive...so even if 21 is already positive, the absolute value is 21, the absolute value of -21 is 21 btw.