Divisibility Rules Factors Prime and Composite Numbers

A number is divisible by another number if the remainder is 0 when the number is divided by other number.

• Quotient

• Divisor

• Quotient

• Divisible

Tags

CCSS.4.NBT.B.6

the greatest number that is a factor of two or more numbers.

• Greatest Common Factor (GCF)

• Order of Operations

• Divisibility Rules

• Compatible Numbers

Which of the following is a factor of 50?

• 45

• 12

• 3

• 25

Tags

CCSS.4.OA.B.4

How many factors does 45 have?

• 6

• 2

• 8

• 10

Tags

CCSS.4.OA.B.4

Is 15 a prime number or a composite number?

• Prime

• Composite

Tags

CCSS.4.OA.B.4

The factors of 12 are (a)  

Tags

CCSS.4.OA.B.4

Fill in the blanks

a) ____ is the first and only even prime number

b) Composite numbers have_____ than 2 factors

c) Numbers having factors 2 and 3 also have ______ as a factor.

• 2,less,8

• 4,more,9

• 8,less,6

• 2,more,6

Tags

CCSS.4.OA.B.4

Find out the factors of 100.

(a)  

Tags

CCSS.4.OA.B.4

Write the Divisibility rules for 2,3,5 and 10.

Tags

CCSS.5.OA.B.3

How do you know if a number is divisible by 3?

• The last digit is a 0 or 5.

• If it ends in 3, 6, or 9

• If it is an even number

• The sum of the digits is a multiple of 3.

Tags

CCSS.3.OA.D.9