Any number can be multiplied by 21
How about: 3*7 = 21 or 1*21 = 21
21 and 5
2*21 = 42
21*6=126
Any number can be multiplied by 21
How about: 3*7 = 21 or 1*21 = 21
21*5 is the answer
21 multiplies to 21 to make it 441
3 x 7 1 x 21
-17
1 x 21, 3 x 7
2 when multiplied by 21 = 42
21 and 5
2*21 = 42
21*6=126
21