What is the prime factorization of 1,260 A. 2x2x3x3x5x7 b. 2x3x5x7 c. 4x5x7x9 d. 2x3x5x6x7

To find out the prime factorization of 1260 you need to "decompose" this number in prime numbers

first step i will divide the 1260 by numbers that I know it is divisible by (ends in 0 so it will be 10, sum of the digits is 9 so will be divisible by 3)

1260=126*10=9*14*10=3*3*2*7*2*5

i need to write the prime numbers in order

1260=2*2*3*3*5*7 is choice A