Question

find the largest prime factor of both 720 and 1575

Answer 1

Answer:

720 = 2 × 2 × 2 × 2 × 3 × 3 × 5; Find the prime factorization of 1575 ... 5 × 5 × 7; To find the GCF, multiply all the prime factors common to both numbers:

Answer 2

I)Find the prime factorization of 720

720 = 2 × 2 × 2 × 2 × 3 × 3 × 5

ii) Find the prime factorization of 1575

1575 = 3 × 3 × 5 × 5 × 7

iii) To find the GCF, multiply all the prime factors common to both numbers:

iv) Therefore, GCF = 3 × 3 × 5

v) GCF = 45