1. indicate whether the number is divisible by 2, by 3, or by 5.(note: some numbers may be divisible by more than one of these numbers.)
a. 450
b. 31
c. 18,652
d. 455

2. write out the prime factor of the following numbers.
a. 15
b. 21
c. 38
d. 42

3. what’s the least common multiple of each group of numbers?
a. 5 and 6
b. 2 and 9
c. 6 and 8
d. 2, 5, and 6

1.

a.2,3,5 450/2=225 450/3=150 450/5=90

b.none

c.2 only 18,652/2=9,326

d.5 only 455/5=91

2.

a.3 and 5

b.3 and 7

c.19

d.7 and 21

3.

a.30

b.18

c.24

d.30

step-by-step explanation:

the number of possible outcomes that do not show a 1 on the first spinner and show the number 4 on the second spinner is 2.

spinner 1 spinner 2

1                     1

1                     2

1                     3

1                     4

2                   1

2                   2

2                   3

2                   4   = not 1, and 4

3                   1

3                   2

3                   3

3                   4 = not 1, and 4

only 2 outcomes have passed the given condition.

step-by-step explanation: