Prime & Composite Numbers
Is 23 prime or composite?
Prime
What is the prime factorization of 42?
2 x 3 x 7
Find the GCF for 45 & 60.
GCF is 15.
True or False: When finding the Least Common Multiple, if at least one of the numbers is prime, you can just multiply them together.
True.
0.934 + 1.67
2.604
Is 184 prime or composite?
Composite
What is the prime factorization of 29?
29 is prime.
Find the GCF for 14 & 28.
GCF is 14.
Find the LCM of 4 and 8.
LCM is 8.
14.54 - 2.5
12.04
When is a number considered to be prime?
What is the prime factorization of 56?
2 x 2 x 2 x 7 or 23 x 7
Find the GCF of 55 and 99.
GCF is 11.
Find the LCM of 8 and 12.
LCM is 24.
2.67 x 6.3
16.821
When is a number considered composite?
A number is considered composite when it has more than 2 factors.
What is the prime factorization of 99?
3 x 3 x 11 or 32 x 11
Find the GCF of 83 and 91.
GCF is 1.
Find the LCM of 4 and 9.
2.87 ÷ 4.1
0.7
True or false: All odd numbers are prime.
False.
What is the prime factorization of 97?
Find the GCF of 12 and 18.
GCF is 6.
Find the LCM of 6 and 7.
LCM is 42.
62.3 x 5.8
361.34