What times what times what equals 512?

The factors of 512 are: 1 2 4 8 16 32 64 128 256 512

So: 1·2·256 = 512

1·4·128 = 512

1·8·64 = 512

1·16·32 = 512

2·4·64 = 512

2·8·32 = 512

4·8·16 = 512