REVIEW EXERCISE: Divisibility Rules, GCF, LCM

Which number is divisible by 6?

• 132

• 124

• 133

• 112

Which number is divisible by 9?

• 336

• 339

• 381

• 396

When can we say that a number is divisible by 6?

• It is an even number.

• It is divisible by 2 and 3.

• The sum of its digits is a multiple of 9.

• The ones digit is 3 or 6.

Which is NOT a multiple of 4?

• 320

• 424

• 516

• 634

Which can be divided perfectly by 2 and 5?

• 355

• 402

• 390

• 556

621 is divisible by

• 9

• 4

• 8

• 6

in 182n, what is the smallest digit that can replace n to make the numeral divisible by 3 and 9?

• 7

• 0

• 1

• 3

Which number is divisible by 2, 3, 4, 5, and 10?

• 3 220

• 3 420

• 3 444

• 3 460

What is the highest common factor of 18 and 27?

• 6

• 9

• 12

• 54

What is the lowest multiple common to 7 and 9?

• 1

• 56

• 63

• 81