Divisibility Rules/ Factors

Name the factors of 16.

• 1, 4, 16
• 4
• 1, 2, 4, 8, 16
• 2, 4, 8

Tags

CCSS.4.OA.B.4

Name the factors of 27.

• 1, 3, 9, 27
• 3, 9
• 1, 27
• 1, 2, 3, 27

Tags

CCSS.4.OA.B.4

Name the factors of 49.

• 1, 7, 49
• 7
• 1, 7, 59
• 1, 7, 48

Tags

CCSS.4.OA.B.4

what is the divisibility rule for 4

• Last two numbers divisible by 4

• Last 3 numbers divisible by 4

• Add all of the digits and divide by 4

• Even number

Tags

CCSS.4.OA.B.4

Which number is divisible by 6

• 1782

• 1213

• 536

Tags

CCSS.4.OA.B.4

Why does the divisibility rule for 6, that if a number is divisible by 2 and 3 then it is divisible by 6.

• Because 2x3= 6

• 2 and 3 are the prime factors for 6

• You add up all of the digits and then divide by 6.

Tags

CCSS.4.OA.B.4

If a number is divisible by 9 what other number is it divisible by?

• 3

• 4

• 6

• 8

Tags

CCSS.4.OA.B.4

What is the divisibility rule for 1

• It has to be an even number

• Every number is divisible by 1

• Add up all of the digits and if it is divisible by 1 then the whole number is.

Tags

CCSS.3.OA.D.9

What happens when you divide by 0

• Calculator turns off

• 0 appears

• it is undefined

Tags

CCSS.5.NBT.A.2

The digit in the ones place is 0 or 5.  The number is divisible by...

• 5
• 10
• 2
• 6

Tags

CCSS.3.OA.D.9