54
The sum of divisors of a number, excluding the number itself, is called its aliquot sum
= The sum of two numbers is -42 the first number minus the second number is 52 Find the numbers? =
42 has three prime factors: 2, 3 and 7
It's the sum of 42 and 13 which is 55.
19 and 23
It could be -7.(-7)2 + (-7) = 49 - 7 = 42.
n=9. Because n+42=51. Subtract 42 from both sides and n=9
The numbers are 41, 42 and 43.
The mass number is the sum of protons and neutrons in an atom. If the mass number is 75 and the number of neutrons is 42, then the number of protons would be 75 - 42 = 33. Since atoms are electrically neutral, the number of electrons in the atom would also be 33.
There are different ways to write the answer: n+n+8 = 42 or 2n + 8 = 42
4+5=9 42+52=41
25 is the sum of 9 and 16. (52 = 32 + 42)