Divisibility Rule for 3

What is the divisibility rule for 3?

• The number has to be even

• The number has to end in a 5 or 0

• The sum of the digits are a multiple of 3

• The number has to end in a 0

65: What is the sum of the digits?

• 10

• 11

• 12

• 65

Is 65 divisible by 3?

• yes

• no

144: What is the sum of the digits?

• 8

• 9

• 10

• 11

Is 144 divisible by 3?

• yes

• no

Is 542 divisible by 3?

• Yes, the sum of the digits is 9

• No, it ends in a 2

• Yes, the sum of the digits is 11

• No, the sum of the digits is 11

Is 1,206 divisible by 3?

• yes

• no

Is 2,451 divisible by 3?

• No, it is an odd number

• No, the sum of the digits is 12

• Yes, the sum of the digits is 12

• Yes, it is an even number

790: What is the sum of the digits?

• 79

• 790

• 15

• 16

Is 790 divisible by 3?

• yes

• no