How about 8*8 = 64 as one example
Bad
15,625 x 64
All of them. When multiplied by 12, none of them gives a product that is evenly divisible by 64.
64
35 multiplied by 64 is 2,240.
These are the pairs of numbers that when multiplied are equal to 64: (1, 64) (2, 32) (4, 16) (8, 8)
700 multiplied by 64 is 44,800
64 is completely lucky
64 multiplied by 850 is 54,400.
216 * (64%) = 138.24
250 multiplied by 64 = 16,000
64 multiplied by 2 is 128.