A prefix meaning one septillion (1,000,000,000,000,000,000,000,000 or 1024)
The same as multiplying by 1024
Prefix is Y
Example: 12 Ym = 12 yottameters = 12 septillion meters (12,000,000,000,000,000,000,000,000 m)
Below are distances from quarks (very small) to the observable universe (about 880 yottameters in diameter):
