Multiples & Factors
What is the next multiple of 6 after 24?
30
Which of these numbers is prime: 9, 11, or 15?
11
In the number 47,362, what is the value of the digit 7?
7,000 (seven thousand)
Calculate 864 ÷ 4
216
Calculate 24 × 13
312
What are the first five positive multiples of 7?
7, 14, 21, 28, 35
Using a factor rainbow, find all the factor pairs of 24.
1, 2, 3, 4, 6, 8, 12, 24
1 × 24, 2 × 12, 3 × 8, and 4 × 6.
What is the value of the digit 6 in 6,204,018?
6,000,000 (six million)
Calculate 3,675 ÷ 5
735
Calculate 146 × 23
3,358
What is the least common multiple of 8 and 12?
24
What is the greatest common factor (GCF) of 18 and 30?
6
In the number 3,582,614,907,201, what is the value of the digit 8?
80,000,000,000 (eighty billion)
Calculate 24,864 ÷ 6
4,144
327 × 46
15,042
Two bells ring at different intervals. One rings every 9 minutes and the other every 15 minutes. If they ring together now, how many minutes will pass before they ring together again?
45 minutes
What is the prime factorization of 84? Express your answer as a multiplication sentence using only prime numbers.
2 × 2 × 3 × 7
Write 4,070,005,020,006 in expanded form.
4,000,000,000,000 + 70,000,000,000 + 5,000,000 + 20,000 + 6
Calculate 78,435 ÷ 7
11,205
Calculate 584 × 237
138,408
Find the least common multiple of 12 and 18. Show how you could use the multiples of each number to prove your answer.
36. The multiples of 12 include 12, 24, 36; the multiples of 18 include 18, 36. The first common multiple is 36.
Two students have 48 red counters and 72 blue counters. They want to make the greatest possible number of identical groups, using all the counters, with the same number of red counters and the same number of blue counters in every group. How many groups can they make, and how many of each colour will be in each group?
24 groups, with 2 red counters and 3 blue counters in each group.
Reasoning: GCF(48, 72) = 24. Then 48 ÷ 24 = 2 and 72 ÷ 24 = 3.
Write the following number in standard form using digits: twelve trillion, four hundred five billion, thirty million, eight thousand, nineteen.
12,405,030,008,019
Calculate 456,789 ÷ 9
50,754 R3
Calculate 768 × 459
352,512