1000 x 1000 = 1000000
1000 times 1000 is 1000000, read as one million. Each number carries three zeros and the answer carries six, because multiplying ten cubed by ten cubed gives ten to the sixth.
1,000 × 1,000 = 1,000,000
Adding 1,000 to itself 1,000 times gives the same answer.
Three zeros plus three zeros
1000 is ten cubed. Multiplying it by itself doubles the exponent to ten to the sixth, which is 1000000. Counting zeros gives the same six, and it is safe to count here because both numbers are a one followed by zeros and nothing else.
A 1000 by 1000 image is one megapixel
An image 1000 pixels wide and 1000 pixels tall holds 1000000 pixels, which is what a camera specification calls one megapixel. The same product converts land area: a square 1000 metres on each side is 1000000 square metres, which is one square kilometre. And a kilometre is 1000000 millimetres, since each of its 1000 metres holds 1000 of them.
Where computing disagrees
Outside of counting things, mega sometimes means 1024 x 1024 instead, which is 1048576, or 48576 more than a million. Storage sold by the megabyte uses the round million; memory sized in megabytes usually means the larger number. Both get called a megabyte, and the gap is where the missing space on a new drive goes.
Nearby answers
- 1000 + 1000 is 2000, which is also the answer to 20 x 100.
- 1000 x 100 is 100000, one zero short of a million.
- 10000 x 1000 is 10000000, ten million.
- 1000000 is 100 x 100 x 100, so it is 100 x 100 taken a hundred times over.