Number Theory Review

True or False...
40,500 is divisible by 6

• True
• False

Is 36,928 divisible by 4?

• Yes
• No

Is 53,559 divisible by 5?

• Yes
• No

Which is the prime factorization of 12? 

• 2 x 6
• 2 + 2 + 2 + 2 + 2 + 2 
• 2 x 2 x 3
• 1 x 2 x 2 x 3

Use a number tree to find the prime factorization of 48

• 4x2x6
• 4x2x2x3
• 3x2x2x2x2
• 12x4

Find the greatest common factor of 30 and 36

• 2
• 3
• 6
• 18

Tags

CCSS.6.NS.B.4

GCF of 99 and 54

• 9
• 3
• 6
• 8

What is the Lowest Common Multiple (LCM) for the numbers
8 and 6?

• 16
• 12
• 24
• 14

The number 70,110 is divisible by...

• 2, 3, 4, 5, 6, 9, 10
• 2, 3, 4, 5, 6, 8, 9, 10
• 2, 3, 5, 6, 9, 10
• 2, 3, 5, 9, 10

What is the LCM of 22 and 6? 

• 6
• 22
• 42
• 66