Greatest Common Factors
Find the Greatest Common Factor (GCF) of: 36 and 28.
The GCF is 4.
Find the Least Common Multiple (LCM) of: 12 and 14.
The LCM is 84.
Find the prime factorization of 20.
22 x 5
560
1
Given three examples of prime numbers
will vary.
Find the Greatest Common Factor (GCF) of: 115 and 25.
The GCF is 5.
Find the Least Common Multiple (LCM) of: 16 and 22.
The LCM is 176.
Find the prime factorization of 81.
34
34
81
Give three examples of composite numbers.
will vary
Find the Greatest Common Factor (GCF) of: 330 and 60.
The GCF is 30.
Find the Least Common Multiple (LCM) of: 220 and 50.
The LCM is 1100
Find the prime factorization of 26.
2 x 13
Evaluate: (2/3)3
8/27
Fill in the blank.
The prime factorization of a number is the (blank) of its prime factors.
product
Find the Greatest Common Factor (GCF) of: 27, 36, and 60.
The GCF is 3.
Find the Least Common Multiple (LCM) of: 30 and 65.
The LCM is 390.
Find the prime factorization of 100.
22 x 52
Evaluate the expression:
4.32 x 102
432
Fill in the blank.
In a power, the (blank) is used as a factor.
base
The fruit seller needs to pack some fruit in baskets to be sold before New Year’s Day. There were 45 oranges, 54 bundles of grapes and 27 melons in the stock room which needed to be packed. Each basket needed to have the same number of pieces of fruit in it. What is the greatest number of baskets of fruit the fruit seller will pack? How many oranges are there in each basket?
3 baskets, 5 oranges in each
The 3 bells ring at the factory at intervals of 3, 6 and 10 minutes simultaneously starting at 8:00 in the morning. At what time will the three bells ring together at the same time?
8:30 AM
Lisa wrote the prime factorization of 20 to be 5x4. How do you know that her answer is incorrect?
All factors in prime factorization should be prime. 4 is not a prime number.
Evaluate: 0.236 x 106
236,000
What makes up a power?
base and an exponent.