Review for Test Chapter 5

Determine if the statement is true or false.

A prime number may have one or two different natural number factors but may not have more than two

different natural number factors.

• True

• False

Determine whether the statement is true or false.

All prime numbers are odd.

• True

• False

Find all natural number factors of the number.

646

• 1, 2, 4, 13, 26, 52, 169, 338, 676

• 1, 2, 13, 169, 676

• 1, 2, 3, 4, 13, 26, 169, 338, 676

• 1, 2, 4, 13, 26, 39, 52, 169, 338, 676

Find all natural number factors of the number.

42

• 1, 2, 3, 7, 6, 14, 21, 42

• 7, 6, 14, 42

• 1, 2, 3, 7, 6, 14, 28, 42

• 1, 7, 42

Use divisibility tests to decide whether the first number is divisible by the second.

788,913; 9

• Yes

• No

Use divisibility tests to decide whether the first number is divisible by the second.

6,955,200; 7

• Yes

• No

Give the prime factorization of the number. Use exponents when possible.

30

• $2\cdot3\cdot5$

• $2^2\cdot5$

• $3^2\cdot2$

• $6\cdot5$

Give the prime factorization of the number. Use exponents when possible.

69

• $3\cdot23$

• $3^2$

• $3^2\cdot23$

• $3\cdot21$

Determine all values for the digit x that make the first number divisible by the second number. If none exist, so state.

533x is divisible by 11.

Determine all values for the digit x that make the first number divisible by the second number. If none exist, so state.

74,3x2 is divisible by 6