RobbinLestor202 RobbinLestor202

20-07-2015
Mathematics

Answered

The sum of the first 1 million primes is N. Without knowing N's value, one can determine that the ones'digit of N cannot be

A1
B2
C3
D9

Verified Answer :

DavidOrrell DavidOrrell

20-07-2015

All primes are odd, except two. Therefore the sum of the first million primes is one even number plus 999999 odd numbers. Since odd*odd = odd, the first million primes must be even + odd = odd.

An odd number obviously has an odd final digit, so the only option that can be firmly rules out is b (which is even).

Answer Link

Related Questions

The cartilage which divides the nose in two parts is called the

To which literary movement did Ambrose Bierce belong

A monopoly shuts down when A the average cost is less than price B the short run price is below its average variable costs C the long run price is below its ave

multiply all whole numbers from 1 through 100 the largest power of 4 is a factor of the product of

The base of a cube is parallel to the horizon A plane cuts through the cube creating a pentagonshaped cross section Which kind of plane could it be A a vertical

which of the following would represent a line in the real world an airplane a sheet of paper a pencil the internet

Which of the following statements about the Greek philosophers Aristotle Plato and Socrates is correct Socrates learned about the natural sciences from his ment

Why did so many civil war battles took place in Virginia

Two factors that contribute to a detrimental relationship

a number w added to 23 is more than 18

Web Analytics