There are 8 different pairs of whole numbers whose prodcut is 40. Allowing for commutativity (a*b = b*a), there are 16 possible ways.
51
An infinite number.
There are many pairs of consecutive whole numbers that lie between the square roots of 46, which are approx -6.78 and +6.78. -4 and -3, for example.
If you restrict yourself to whole numbers, 12 has 3 factor pairs: 1 x 12 2 x 6 3 x 4
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Eight has two factor pairs. Including their negative counterparts, that makes four pairs.
There are 8 different pairs of whole numbers whose prodcut is 40. Allowing for commutativity (a*b = b*a), there are 16 possible ways.
100
2,000,000,000,000
3 pairs 1 times 12, 2 times 6, and 3 times 4
51
20 of them
4, if you multiply them.
The prime factors of 333 are 3,3 and 37 Thus the pairs of whole numbers that go into 333 are: 1 and 333 3 and 111 9 and 37 There are 3 pairs.
1,00
Assuming the 36 numbers are all different, there are 36*35/2 = 630 pairs.