119
Factors of 21: 1, 3, 7, 21 Factors of 2: 1, 2 GCF (21, 2) =
63? But it has more than two one-digit factors.
6 and 8 1 and 3 2 and 4 4 and 6
21 is a Composite Number. A prime number is a whole number that only has two factors which are itself and one. A composite number has factors in addition to one and itself. 21 is divisible by 3 and 7.
The factors of 35 are 1, 5, 7, and 35. There are only two factors with a difference of 2; they are 5 and 7. 1 and 5 have a difference of 4. 1 and 7 have a difference of 6. 1 and 35 have a difference of 34. 5 and 7 have a difference of 2. 5 and 35 have a difference of 30. 7 and 35 have a difference of 28.
119
1, 2, 3, 6, 7, 14, 21, 42
8 2
It is: 21 because it has more than two factors
7 and 9
7 and 9
Factors of 21: 1, 3, 7, 21 Factors of 2: 1, 2 GCF (21, 2) =
The factors of 63 are 1, 3, 7, 9, 21, and 63. Pick two.
17 If the number has only two factors, it must be a prime number. The only factors of 17 are 1 and 17. The difference between 1 and 17 is 16.
20 and 1 Seems to be a common problem. Add the sum to the difference and divide by 2 gives one number. Then start over and subtract the smaller of the two givens from the larger and then divide by 2 to get the other number. So here you have (21+19)/2 and (21-19)/2
either 1and2 or 2 and 3