Prime & Composite
Factor Trees
GCF
LCM
Costume Party
100
a whole number greater than 1 that has exactly 2 factors - 1 and itself.
What is a prime number
100
What is the prime factorization of 27?
What is 3 to the third power
100
What is the GCF of 6 and 27
What is 3
100
What is the LCM for 10 and 40?
What is 40
100
You meet a slim lady who is dressed up like a carrot. She tells you that she is a one-digit number. Interestingly, she reveals that she cannot be considered prime nor composite, but yet is not alone. What number is this lady?
What is 1
200
a whole number greater than 1 that has more than two factors
What is a composite number
200
What is the prime factorization of 42?
What is 2 x 3 x 7
200
What is the GCF of 15 and 40?
What is 5.
200
What is the LCM for 2 and 5?
What is 10
200
You meet a demonic fellow dressed in a devilish red. He repeats 3 times that he is a multiple of 6. This 3-digit character has 37 as a prime factor and is none other than who?
What is 666
300
True or False: All the following numbers are Composite 4, 12, 21, 39
What is True
300
What is the prime factorization of 84?
What is 2 squared x 3 x 7
300
What is the GCF of 30 and 90?
What is 30
300
What is the LCM for 12 and 60?
What is 60
300
Another scary lad wearing a calendar costume seems to have most of the guests steering clear of him. He describes himself as a 2-digit odd number. He is also prime. When he turns around you see the word, "Friday" on his back which is why others may be afraid of him. What number is he?
What is 13
400
Which number is NOT Prime? 3, 13, 23, 33
What is 33
400
What is the prime factorization of 144?
What is 2 to the 4th power x 3 squared
400
What is the GCF of 60 and 75?
What is 15
400
What is the LCM for 4 and 9?
What is 36
400
You find a loner in the party. He is wearing an outfit of an Easter Bunny with a basket of EGGS. He is sobbing and sad in the corner. You approach him to find out the reason. Well, he says that he is caught in the middle because he is neither positive nor negative. What number would he be?
What is 0
500
Which number is NOT composite? 6, 37, 51, 62
What is 37
500
What is the prime factorization of 225?
What is 3 squared x 5 squared
500
What is the prime factorization of 56 and 80?
What is 8
500
What is the LCM for 6 and 15?
What is 30
500
The crowd is excited because it's time for the most beautiful number competition. The judge is a square number and will judge the contest fair and square. Her costume is the letter "C". She is the smallest 3-digit square number. Who is she?
What is 100