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Worksheets

Number theory

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

Find the prime factorization of 240.

a)

22x5x72^2x5x7  

b)

c)

2x3x522^{ }x3x5^2  

d)

2x32x5x72x3^{2^{ }}x5x7  

2.

A greek mathematician whose work in number theory remains significant. He is the director of the world-famous library at Alexandria.

a)

Eratosthenes of Cyrene

b)

Pierre-Simon Laplace,

c)

David Hilbert

d)

Euclid of Alexandria

3.

What do you call a method for finding prime numbers that Eratosthenes invented.

a)

Adams' method

b)

Euler's Method

c)

Diophantine Equations

d)

Eratosthenes Sieve

4.

What do you call a number greater than 1 with only two factors – itself and 1.

a)

Odd Numbers

b)

Even Numbers

c)

Prime Numbers

d)

Imaginary numbers

5.

Is 1 a prime number?

a)

Yes

b)

No

c)

It depends

6.

A number that divides evenly into another.

a)

Factor

b)

Mean

c)

LCD

d)

coefficients

7.

Numbers that can be expressed as a fraction or part of a whole number.

a)

Cardinal N

b)

Imaginary numbers

c)

Fibonacci numbers

d)

Rational numbers

8.

Any real number that cannot be expressed as the quotient of two integers.

a)

Irrational numbers

b)

Mersenne number

c)

ordinal numbers

d)

real numbers

9.

Is an integer greater than 0

a)

transfinite numbers

b)

transcendental number

c)

Natural numbers

d)

rational numbers

10.

Who investigated the study of number theorem goes back at least to the ancient greeks of a prime number.

a)

Leonhard Euler

b)

Carl Friedrich Gauss

c)

Georg Cantor

d)

Girolamo Cardano