They are both prime numbers.
35 is a multiple of 7 7 and 1 are a factor pair of 7. 3 and 5 are a factor pair of 15
They are 3 and 7
7 and 21 3 and 21
(1, 21)(3, 7)
Pair of Kings - 2010 Heart and Troll 3-7 was released on: USA: 30 July 2012
21 and 42
-7 and -6 is one pair. 6 and 7 is the other, more boring pair.-7 and -6 is one pair. 6 and 7 is the other, more boring pair.-7 and -6 is one pair. 6 and 7 is the other, more boring pair.-7 and -6 is one pair. 6 and 7 is the other, more boring pair.
A pair of square numbers with a difference of 7 is 9 and 2. Specifically, 3² (which is 9) and 1² (which is 1) satisfy the condition since 9 - 1 = 8. However, the correct pair is actually 16 (4²) and 9 (3²), as 16 - 9 = 7.
7
3 x 7
21 = 1 x 21, 3 x 7, 7 x 3, 21 x 1
The factor pairs for 21 are1 x 21 and 3 x 7