Divisibility & Factors
List all the factors of:
60
1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, & 60
Is the following number prime or composite? If composite write the prime factorization:
120
Composite:
2 x 2 x 2 x 3 x 5
Simplify the fraction:
12/20
3/5
8a2 x 3a4
24a6
Write the following number in standard form:
3.12 x 106
3,120,000
List all the factors of:
64
1, 2, 4, 8, 16, 32, & 64
Is the following number prime or composite? If composite write the prime factorization:
36
Composite:
2 x 2 x 3 x 3
Simplify the fraction:
50a2/5a
10a
Simplify:
(x3)(y)(x2)
x5y
Write the following in scientific notation:
52,100
5.21 x 104
Which of the following is 1,866 divisible by?
2, 3, 4, 5, 6, 8, 9, or 10
2, 3, & 6
Is the following number prime or composite? If composite write the prime factorization:
47
Prime
Simplify the fraction:
100pq/625q
4p/25
Simplify:
(6x2)/(2x5)
3/x3 or 3x-3
Multiply and write in scientific notation:
(5 x 104)(8 x 109)
4 x 1014
Which of the following is 2,458,680 divisible by?
2, 3, 4, 5, 6, 8, 9, or 10
2, 3, 4, 5, 6, 8, & 10
A teacher divides 27 students into groups of at least two students. All the groups are the same size. What is the greatest possible number of groups?
9 groups
What is the GCF of:
12m3n2 & 15m2n4p3
3m2n2
Simplify:
(18m20)/(6m5)
3m15
Multiply and write in scientific notation:
(1.1 x 106)(6 x 1010)
6.6 x 1016
How many six-sliced pizzas must you order for five people to get the same number of slices with none left over?
5 pizzas (or a multiple of 5)
Lucia is reading a book with 25 chapters. She reads the same number of chapters each day. Can she finish the book in exactly six days? Explain
No; 6 is not a factor of 25
What is the GCF of:
20x4y5z2 & 44x5y3z2
4x4y3z2
(8x4y6)3
512x12y18
Multiply and write in scientific notation:
(8.3 x 106)(3 x 105)
2.49 x 1012