|
English\[15,25,40\]
1 List the factors of each number. Factors of 15 : 1, 3, 5, 15Factors of 25 : 1, 5, 25Factors of 40 : 1, 2, 4, 5, 8, 10, 20, 402 Find the largest number that is shared by all rows above. This is the GCF. GCF = 1 List the prime factors of each number. Prime Factors of 15 : 3, 5Prime Factors of 25 : 5, 5Prime Factors of 40 : 2, 2, 2, 52 Find the intersection of these primes. 3 The intersection contains only one number. Therefore, this is the GCF. GCF = Done  |
Choose Topic
