Well, darling, 151 is a Prime number, so the only way to multiply two numbers to get it is by multiplying 1 and 151. So, there you have it, 1 and 151 are the dynamic duo that multiplies to 151. Math can be a real hoot, can't it?
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There are no two real numbers that do. Using complex numbers, these two do: (-3/2 + i√151/2) & (-3/2 - i√151/2) Two numbers that add to -3 and multiply to -40 are -8 & 5 Two numbers that add to 3 and multiply to -40 are 8 & -5 Two complex numbers that add to 3 and multiply to 40 are (3/2 + i√151/2) & (3/2 - i√151/2)
The numbers 149, 151 and 157 are prime.
To multiply two digit decimal numbers, multiply the numbers as you would without the decimals. To put the decimal in the answer, count the number of decimal places in the two numbers and put the decimal in the answer that many places to the left. For example: 5.12 x 6.35 = 32.5120. If the numbers were 51.2 x 63.5, the answer would be 3251.20.
They are: 1*83 = 83
7 x 11