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What is the GCF of 28, 84, and 49?
7
Is 85 prime or composite?
composite
Tell the prime factorization of 100
2x2x5x5
Tell the prime factorization of 25
5x5
Is 5 prime or composite?
prime
Is 49 prime or composite?
composite
Is 66 prime or composite?
composite
What are the two methods for finding the GCF?
Prime Factorization and Listing Factors
Gina found the prime factors of 98 (2x7x7) and 84 (2x2x3x7). What is the GCF of 98 and 84?
14
Harold has 50 Pokemon cards and 75 Pokemon toys. He wants to give them out as prizes to his friends. He found that the GCF of 50 and 75 is 25. If he divides them equally among 25 friends, how many cards and toys will each get?
2 cards and 3 toys
Find the GCF of 32 and 81
1
Find the GCF of 20 and 35
5
Find the GCF of 21 and 49
7