The math factor pairs of 18 are (1,18) , (2,9) , (3,6) .
The factor pairs of 21 are:1, 213, 7Therefore, the number 21 has two pairs of positive integer factors.
(49,1)(7,7)
1 and 73
(98,1)(49,2)(14,7)
The math factor pairs of 18 are (1,18) , (2,9) , (3,6) .
The factor pairs of 21 are:1, 213, 7Therefore, the number 21 has two pairs of positive integer factors.
There are two factor pairs of 21: 21 = 1 x 21 21 = 3 x 7
Factors of 21 are 1, 3, 7, and 21; the factor pairs are (1 x 21) and (3 x 7).
827 and 1.
1,8 2,4
10x1 1x105x22x5
(14,1)(7,2)
(1,100) (10,10)
1x125 5x25
(4,1)(2,2)
(49,1)(7,7)