Take your pick:
It could be 33: the only composite number with repeated digits
It could be 71: the only Prime number
It could be 4: the only square number
It could be 106: the only composite number with all different digits.
The factors of 33 are: 1, 3, 11, 33 The factors of 38 are: 1, 2, 19, 38 The factors of 71 are: 1, 71
33 + 38 = 71
There are an infinite amount of answers if you use decimal values. However, 71 is a prime number, so 1 x 71 is 71 and 71 x 1 = 71.
23.43
33+71+13+45+60=322322 divided by 5 =64r2
71 is a prime number it doesnt have factors
71% or C-
The atomic number of an element is the number of protons in the nucleus. For the element Lu (lutetium), the atomic number is 71. The atomic mass number is the sum of the number of protons and neutrons in the nucleus. Therefore, an isotope of Lu with 106 neutrons would have an atomic mass number of 177 (71 protons + 106 neutrons = 177).
71.2121
64.7
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206