The factors of 21 are 1, 3, 7, and 21. 3 - 1 = 2
The two square numbers with a difference of 21 are 25 and 4. This is because (5^2 = 25) and (2^2 = 4), and their difference is (25 - 4 = 21).
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
The two square numbers with a difference of 21 are 25 and 4. This is because (5^2 = 25) and (2^2 = 4), and their difference is (25 - 4 = 21).
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
8 2
1, 2, 3, 6, 7, 14, 21, 42
7 and 9
7 and 9
It is: 21 because it has more than two factors
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
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.
The factors of 63 are 1, 3, 7, 9, 21, and 63. Pick two.
The only prime factor of 8 is 2. You need at least two numbers to have a difference.