Prime Numbers/Factorization
List 3 prime numbers
2, 3, 5, 7, 11, 13, 17, 23...
Find two common multiples of 6 and 8
24, 48, 96 ...
24 + 6 * 3 - 2
40
What is
sqrt(1)
1
What is the opposite of a prime number called?
composite
Find the greatest common factor of 48 and 56
23 or 8
52 + 23
33
What is 24?
16
What is the prime factorization of the number 54?
2x3x3x3
What is the least common multiple of 6 and 8?
24
sqrt(81) - 9
0
A box of cards can be shared equally among 4, 5, or 6 students, with 3 cards left over each time. What is the least possible number of cards in the box?
63
What is the prime factorization of 72?
2x2x2x3x3
Find the greatest common factor of 72 and 108
22 * 32. or 36
6(6 - 2 + 36 -:4)
78
Bus services A, B, and C leave Boston Interchange every 3, 6, and 21 minutes respectively. All three bus services first leave the interchange at 6 A.M. What time will the three bus services next leave the interchange at the same time?
6:42
Find the prime factorization:
99
3x3x11
What is the least common multiple of 15 and 20.
60
6 + [(16 - 4) ÷ (22 + 2)] - 2
6
What is the fancy name for the division bar?
vinculum