39 is the product when the two prime numbers 3 and 13 are multiplied.
3 x 13 = 39
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.
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)
You need at least two numbers to find a GCF.
39 and 22
13 and 3
1 x 39, 3 x 13
1 x 39, 3 x 13
93
3 times 13 will equal 39
1, 3, 13, 39.
78
39 and 2. 78 and 1. 26 and 3. 13 and 6.
7 x 39 = 273 13 x 21 = 273
1 x 117, 3 x 39, 9 x 13
39