How to find the greatest common factor

Practice Questions

PSAT Math › How to find the greatest common factor

Questions
6
1

If is divisible by 2, 3 and 15, which of the following is also divisible by these numbers?

2

Suppose that is an integer such that is ten greater than . What is the value of ?

3

What is the greatest common factor of and ?

4

; , , and are distinct integers.

Which of the following is a possible value of ?

5

.

, , and are integers; they may or may not be distinct.

Which of the following cannot be equal to ?

6

, , and are positive two-digit integers.

The greatest common divisor of and is 10.

The greatest common divisor of and is 9.

The greatest common divisor of and is 8.

If is an integer, which of the following could it be equal to?

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